(Score for Question 5: Click or tap here to enter text. of 4 points)
5. Did the horizontal distance traveled by the ball directly depend on the horizontal velocity? Explain your
answer with data from the experiment and compare your data with the equation for range.
Answers
The horizontal distance travelled by the ball directly depend on horizontal velocity.
The horizontal displacement is directly depend upon both the time of flight and the horizontal velocity (vox). For the same launch speeds, the projectile with the greatest angle of launch will have the greatest time of flight, but its horizontal velocity is too small which leads smaller horizontal displacement.
While on the other hand, if the projectile with the shortest angle of launch will have the smaller time of flight in the air, but has larger horizontal velocity which results in the larger horizontal displacement that is covered by the body so we can conclude that the horizontal distance travelled by the ball directly depend on horizontal velocity.
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Related Questions
During a recent upset victory against New Greer Academy, South's #2 singles player, Dimitri, stepped in some mud and left the following tracks along the baseline. The point-to-point distances are:
A to B: 18.1 feet
B to C: 13.3 feet
What is Dimitri's total distance?
Distance
feet
Attempts: 0
What is the magnitude of Dimitri's displacement?
Displacement
feet
Attempts: 0
Answers
Distance can be defined as the amount of ground covered (traveled) by a physical object over a specific period of time and speed, regardless of its direction, starting point or ending point.
Mathematically, the distance traveled by a physical object can be calculated by using this formula:
Distance = speed × time
What is Dimitri's total distance?Dimitri's total distance is the sum of the distance he covered by moving from point A to B and then from B to C. Thus, his total distance is given by:
Total distance = AB + BC
Total distance = 18.1 + 13.3
Total distance = 31.4 feet.
What is the magnitude of Dimitri's displacement?The magnitude of Dimitri's displacement would be calculated by finding the difference in the position of the two point-to-point distances as follows:
Displacement = AB - BC
Displacement = 18.1 - 13.3
Displacement = 4.8 feet.
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Two balls are thrown at the heights and velocities shown in the figure. Which ball travel farther to the right?
Ball A will go farther.
Ball B will go farther.
They will both hit the floor at the same place.
There is not enough information to answer the question.
Answers
Answer:
Both have the same horizontal velocity.
Ball A will take longer to reach the ground.
Ball A will travel farther.
Both have the same horizontal velocity like Ball A will take longer to reach the ground and Ball A will travel farther.
What is velocity ?velocity can be defined as the rate of change of the object’s position with respect to reference and which is complicated but velocity is basically speeding in a specific direction.
Velocity is nothing but a vector quantity means both magnitude (speed) and direction are needed to define velocity. The SI unit of velocity is meter per second (ms-1) and if magnitude or the direction of velocity of a body changes, then it will be said to be accelerating.
Speed and velocity are the two closest term and can be a little confusing but the major difference between speed and velocity is that speed gives us an idea of the rate of faster movement of an object where as velocity speed up as well as tells us the direction the body
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The bowler threw the 9kg bowling ball with a force
of 90N. What was the bowling ball's acceleration?
Answers
Answer:
10 m/s²
Explanation:
9kg= mass 90N=force acceleration=?
the equation is;
Acceleration (m/s²)= force(N) ÷ mass(kg)
A car drives at a constant speed of 21 m/s around a circle of radius 100m. What is the centripetal acceleration of the car
Answers
The centripetal acceleration of the car driving at a constant speed of 21 m/s around a circle with a radius of 100 m is calculated to be 4.41\(m/s^2.\)
To find the centripetal acceleration of the car, we can use the formula:
a = \(v^2\) / r
where "a" represents the centripetal acceleration, "v" is the velocity of the car, and "r" is the radius of the circular path.
Given that the car drives at a constant speed of 21 m/s and the radius of the circle is 100 m, we can substitute these values into the formula to calculate the centripetal acceleration.
a = (21\(m/s)^2\)/ 100 m
a = 441 \(m^2/s^2\)/ 100 m
a = 4.41 \(m/s^2\)
Therefore, the centripetal acceleration of the car is 4.41\(m/s^2.\) This centripetal acceleration represents the inward acceleration that keeps the car moving in a circular path, and its magnitude is determined by the square of the velocity divided by the radius of the circle.
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starting from rest, a 94-kg firefighter slides down a fire pole. the average frictional force exerted on him by the pole has a magnitude of 800 n, and his speed at the bottom of the pole is 3.9 m/s. how far did he slide down the pole?
Answers
The firefighter will slide down upto a distance of 11.68 m.
A firefighter is a first responder with extensive training in firefighting, primarily to extinguish dangerous fires that threaten life, property and the environment, as well as to rescue people and, in some cases or jurisdictions, animals from dangerous situations.
Mass of the firefighter = m = 94kg
Frictional force = F = 800N
Speed at the bottom of the pole = 3.9m/s
Using the work energy theorem which says that initial potential energy is equal to the sum of final kinetic energy and work done.
mgh = (1/2)mv² + W
mgh = (1/2)mv² + Fh
h = height at which firefighter will slide down
h (mg - F) = (1/2)mv²
h = (1/2)mv² / (mg - F)
h = mv² / 2 (mg-F)
h = 94* (3.9)² / 2 (922.14 - 800)
h = 1429.74/122.14
h = 11.68 m
He will slide 11.68 m down the pole.
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two spheres start from rest at the top of a ramp that is h meters high and roll without slipping to the bottom of the ramp. which sphere reaches the bottom of the ramp first if you can ignore frictional losses?
Answers
Sphere B reaches the bottom of the ramp first, as it has more kinetic energy.
sphere A= 7kg
sphere B=9 kg
friction force=0
height= h
kinetic energy=mv²/2
the more mass, more kinetic energy, more velocity to reach the ground.
A specific type of power that can be found in moving particles or things is called kinetic energy. When work, which entails the transfer of energy, is done on an object by applying a net force, that object accumulates kinetic energy. The mass and speed of an item or particle determine the kinetic energy, a property of motion. Any combination of vibration, axis rotation, translation, and movement is referred to as motion (along a path from one location to another). The translational kinetic energy of a body is equal to 1/2mv2, which is calculated by multiplying its mass, m, by the square of its speed, v.
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True or False: Players on offense without possession of the ball are not allowed in the opposing team’s two meter line, or a turnover is called. *
Answers
Answer:true
Explanation:\(U\)
let m is the mass of the proton, b is the magnetic field, e is the electric charge, v is the velocity of the proton and r is the radius of the path in the magnetic field the period of the motion, the time between one kick to the right and the next kick in the same direction, does not depend on the current speed of the proton at speeds small compared to the speed of light. as a result, we can place across the dees a simple sinusoidal potential difference having this period and achieve continual acceleration out to the maximum radius of the cyclotron. one of ernest lawrence's first cyclotrons, built in 1932, had a diameter of only about 30 cm and was placed in a magnetic field of about 1 t. q1. what is the formula for the magnetic force acting on the proton?
Answers
The radius of the particle's circular route will shrink as the magnetic field is increased, increasing the tangential acceleration. The magnetic moment of a proton results from the proton's behavior as a tiny bar magnet with a north and a south pole, which is a fundamental quantum feature known as spin.
What is the proton's magnetic field like?The magnetic moment of a proton results from the proton's behavior as a tiny bar magnet with a north and a south pole, which is a fundamental quantum feature known as spin. The spin of a proton can either align with an external magnetic field or flip to orient itself against the field.Additionally, magnetic fields have an impact not just on secondary electrons but additionally the main proton beam.To learn more about Magnetic field refer to:
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1pt A cannon fires a 5-kg ball horizontally from a
muzzle that is 1 m above the ground. The
velocity of the ball on leaving the cannon is 700
m/s. At the same time that the cannon is fired,
a soldier drops an identical ball straight down
from a height of 1 m. Neglecting friction and air
resistance, which statement is correct regarding
when the balls strike the ground?
Answers
Answer: Both cannonballs will hit the ground at the same time.
Explanation:
Suppose that a given object is on the air. The only force acting on the object (if we ignore air friction and such) will be the gravitational force.
then the acceleration equation is only on the vertical axis, and can be written as:
a(t) = -(9.8 m/s^2)
Now, to get the vertical velocity equation, we need to integrate over time.
v(t) = -(9.8 m/s^2)*t + v0
Where v0 is the initial velocity of the object in the vertical axis.
if the object is dropped (or it only has initial velocity on the horizontal axis) then v0 = 0m/s
and:
v(t) = -(9.8 m/s^2)*t
Now, if two objects are initially at the same height (both cannonballs start 1 m above the ground)
And both objects have the same vertical velocity, we can conclude that both objects will hit the ground at the same time.
You can notice that the fact that one ball is fired horizontally and the other is only dropped does not affect this, because we only analyze the vertical problem, not the horizontal one. (This is something useful to remember, we can separate the vertical and horizontal movement in these type of problems)
what are the four elements of the separation of powers
Answers
The four elements of the separation of powers are: Legislative, Executive, Judicial, and the Checks and balances.
What is the separation of powers?The Separation of Powers is a constitutional doctrine that divides power among the three branches of government in order to avoid abuse of authority and protect liberty. These three branches are Legislative, Executive, and Judicial.
The legislative branch is a part of the government that is responsible for creating laws. It consists of two houses: the Senate and the House of Representatives.
The executive branch is responsible for enforcing laws and is headed by the President of the United States. The President is responsible for executing or carrying out the laws passed by Congress.
The judicial branch is responsible for interpreting the laws and making sure they are being applied correctly. It is composed of a system of federal courts and judges. The highest court in the United States is the Supreme Court.
The system of checks and balances is used to ensure that no single branch of government becomes too powerful. Each branch has the power to limit the powers of the other branches to prevent tyranny. For example, the president can veto a bill passed by Congress, but Congress can override the veto with a two-thirds majority vote.
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(5 points) (what is an electric field line? what are equipotential surfaces? are they necessarily physical surfaces?
Answers
A line in an electric field is fictitious. Equipotential surfaces can be defined in a vacuum, for example, and need not be actual surfaces.
What is electric field of line?An electric field line is an imaginary line or curve formed from a point of an electric field so that tangent to it (at any location) indicates the direction of the electric field at that place. Properties: 1. Electric field lines with a positive charge at one end and a negative charge at the other
Where do electric field lines start and stop?Only at charges (starting at + charges and terminating at - charges) or at infinity do lines start and terminate. Where the field is stronger, lines are closer together. There are more field lines starting or ending on larger charges.
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A basketball with a mass of 0.5 kilograms is accelerated at 2 meters per second". The nat force acting on the mass is _____
a. 2N
b. 0 N
c. 0.5 N
d. 1 N
Answers
Two cars crash in a head-on collision and come to a stop. The crash analysts created the data table
below based on their observations from the scene. Based on their findings, what can be concluded
about the impact forces experienced by each vehicle?
Vehicle A
Vehicle B
Impact time
0.01 sec
0.01 sec
Mass of vehicle
3000kg
1000kg
velocity before impact
10 m/s
- 30 m/s
The impact force for Vehicle A was the same as the impact force for Vehicle B
The impact force for Vehicle A was greater than the impact force for Vehicle B
The impact force for Vehicle A was equal and opposite to the impact force for Vehicle B
The impact force for Vehicle A was less than the impact force for Vehicle B
Answers
The impact force for vehicle A was equal and opposite to the impact force for vehicle B.
The given parameters;
Vehicle A:
impact time of vehicle A, t = 0.01 smass of vehicle A, m = 3000 kgvelocity of vehicle A before impact, v = 10 m/sVehicle B:
impact time of vehicle A, t = 0.01 smass of vehicle A, m = 1000 kgvelocity of vehicle A before impact, v = -30 m/sThe impact force for vehicle A is calculated as follows;
\(F = ma = \frac{mv}{t} = \frac{3000 \times 10}{0.01} = 3,000,000 \ N\)
The impact force for vehicle B is calculated as follows;
\(F = ma = \frac{mv}{t} = \frac{1000 \times -30}{0.01} = - 3,000,000 \ N\)
Thus, we can conclude that the impact force for vehicle A was equal and opposite to the impact force for vehicle B.
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the work function (binding energy) is the energy that must be supplied to cause the release of an electron from a photoelectric material. the corresponding photon frequency is the threshold frequency. the higher the energy of the incident light, the more kinetic energy the electrons have in moving away from the surface. the work function for cerium (used increasingly in the manufacture of cell phones) is equivalent to 280.0 kj/mol photons. use this information to calculate the energy, wavelength, and velocity of ejected electrons. what is the kinetic energy, in joules, of each ejected electron when light of 258.0 nm strikes the metal surface?
Answers
The kinetic energy of each ejected electron when the light of 258.0 nm strikes the metal surface is -3.54 x \(10^{-19}\) J.
The work function is defined as the amount of energy required to release an electron from a photoelectric material, and the corresponding photon frequency is referred to as the threshold frequency. Electrons have more kinetic energy when the incident light has higher energy and moves away from the surface.
The work function for cerium (which is increasingly used in cell phone manufacturing) is equal to 280.0 kJ/mol photons. Using the equation
E = hf = hc / λ
where h is Planck's constant (6.626 x \(10^{-34}\) J s), f is the frequency, c is the speed of light (3 x \(10^{8}\) m/s), and λ is the wavelength, we can compute the energy of a photon at a specific frequency.280.0 kJ/mol = 2.8 x \(10^{5}\) J/mol is equivalent to
4.65 eV. E = hf
where f is the frequency and E is the energy of the photon.
4.65 eV = hf = (6.626 x \(10^{-34}\) J s)(c / λ)
= (4.65 eV)(1.602 x \(10^{-19}\) J/eV)
so
λ = hc / E
= (6.626 x \(10^{-34}\) J s)(3 x \(10^{8}\) m/s) / (4.65 eV)(1.602 x \(10^{-19}\) J/eV)
= 2.13 x \(10^{-7}\) m
= 213 nm is the threshold wavelength.
To compute the kinetic energy of each ejected electron when the light of 258.0 nm hits the metal surface, we will use the following formula:
E = hf = hc / λ
= (6.626 x \(10^{-34}\) J s)(3 x \(10^{8}\) m/s) / (258.0 x \(10^{-9}\) m)
= 2.44 eV is the energy of the photon.
KE = E - Φ,
where KE is the kinetic energy of the electron, Φ is the work function, and E is the energy of the photon.
KE = 2.44 eV - 4.65 eV = -2.21 eV
= (-2.21 eV)(1.602 x \(10^{-19}\) J/eV)
= -3.54 x \(10^{-19}\) J.
When the light of 258.0 nm hits the metal surface, the ejected electrons have -3.54 x \(10^{-19}\) J of kinetic energy.
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a metal rod is connected to a battery through two stiff metal wires that hold the rod horizontally. the rod is between the poles of a horseshoe magnet that is sitting on a mass-measuring platform scale, which reads 100.0 g g . (figure 1) after you turned on the current in the circuit, the scale supporting the magnet read 106.0 g g . the part of the rod that is exposed to the magnetic field is 7.0 cm c m long and the current through it is 1.5 a a .
Answers
The magnitude of the magnetic field is 0.735 T.
The force acting on the metal rod is due to the magnetic field of the horseshoe magnet. We can calculate the force using the equation F = BIL, where B is the magnetic field strength, I is the current through the rod, and L is the length of the exposed part of the rod.
We know,
We are aware that F = BiL in this case, where F is the difference in force between the two measurements:
(106-100)10(-3)9.8 = 0.0588 N B is the magnitude of the magnetic field, and i is the current that flows through the rod: 1 A.L is the length that is exposed to the field.Now,
0.0588 = B x 1 x 0.08
=> B = 0.735 T
The magnitude of the magnetic field is 0.735 T.
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Complete Question:
A metal rod is connected to a battery through two stiff metal wires that hold the rod horizontally. The rod is between the poles of a horseshoe magnet that is sitting on a mass-measuring platform scale, which reads 100.0 g. (Figure 1)
After you turned on the current in the circuit, the scale supporting the magnet read 106.0 g. The part of the rod that is exposed to the magnetic field is 8.0 cm long and the current through it is 1.0 A.
Find the magnitude of the magnetic field.
Alcohol is being heated on the stove and distillates at 172.4⁰F . What is this temperature on the Celsius degree?
Answers
Answer: The head temperature rises as the vapors of lower-boiling compound fill the distillation head. The temperature drops because the lower-boiling compound finishes distilling before vapors of the higher-boiling compound can fill the distillation head, which then cause the head temperature to rise.
A Ford Shleby GT 500 has a horsepower of 760 hp. What is that is Watts? DO NOT include units - just the numeric answer. I QUESTION 15 An object of mass 100 kg is moved with an acceleration of 10 m/2, and goes fron an initial position of 10 m to a final position of 30 m. What work was done on the object? DO NOT include units - just the numeric answer.
Answers
the work done on the object is 20000 J.
The conversion factor from horsepower to watts is 1 hp = 746 watts.
Therefore, the Ford Shelby GT 500's horsepower of 760 hp can be converted to watts as follows:
760 hp × 746 watts/hp = 567760 watts
To convert horsepower to watts, you simply need to multiply the number of horsepower by the conversion factor of 746 watts/hp.So, the numeric answer for 760 hp in watts is 567760.
According to the work-energy principle, the work done on an object is equal to the change in kinetic energy. Mathematically, the work-energy principle can be represented as follows:
W = ΔKHere, W represents the work done on the object, and ΔK represents the change in kinetic energy of the object.
The change in kinetic energy can be calculated using the following formula:
ΔK = (1/2)mvf² - (1/2)mvi²
Here, m represents the mass of the object, vi represents the initial velocity of the object, and vf represents the final velocity of the object. In this case, the object is initially at rest (vi = 0), so the formula can be simplified to
:ΔK = (1/2)mvf²
Now, we can use the following kinematic equation to calculate the final velocity of the object:
vf² = vi² + 2ax
Here, a represents the acceleration of the object, x represents the displacement of the object, and vi represents the initial velocity of the object. Plugging in the given values, we get:
vf² = 0 + 2(10 m/s²)(30 m - 10 m)vf² = 400 m²/s²vf = 20 m/s
Now, we can plug in the values of m and vf to calculate the change in kinetic energy:
ΔK = (1/2)(100 kg)(20 m/s)²ΔK = 20000 JSo, the numeric answer for the work done on the object is 20000 J.
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what is precision?what is precision?
Answers
Answer:
According to Oxford Dictionaries "Precision" means "the quality, condition, or fact of being exact and accurate."
Explanation:
Hope this helps! :)
a force of 45 n is used to slide a 10 kg mass 5 m along an inclined plane. if the ramp has a height of 2 meters, what is the actual mechanical advantage of the ramp?
Answers
A force of 45 n used, The actual mechanical advantage of the ramp is 2.18.
Weight = 10g
= 10 × 9.81
= 98.10N
Force used = 45 N
Mechanical advantage = Height / Force used = 98.1/45 = 2.18
The inverse relationship between acceleration and mass is stated by Newton's second law, which also states that force and acceleration are directly proportionate. By using kinematic measurements, accelerations can be identified. The correct definition of mass is still a contentious issue, despite the fact that modern physics' reference frame analysis provides a comprehensive description of kinematics. It is not apparent how or not this link holds true on microscales because general relativity provides an equivalency between space-time and mass in the absence of a cogent theory of quantum gravity. By expressing Newton's second rule as an equality, the relative units of force and mass may be determined and the law can be interpreted as a quantitative description of mass.
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Calculate the energy for 1 mol of photons (an einstein) for light absorbed at 695 nm.
Answers
Energy for one mole of photons by multiplying the energy of one photon by Avogadro's number 1.718 × 104 Joules or 17.18 kJ/mol.
Energy of one photon = hc/λ
where, h = Planck's constant,
c = speed of light in vacuum,
λ = wavelength of light
Let's find the values of h, c, and λ.
The value of Planck's constant is 6.626 × 10-34 J s.
The speed of light in vacuum is 2.998 × 108 m/s.
The given wavelength of light is 695 nm = 695 × 10-9 m
Putting the values of h, c, and λ in the equation of energy of one photon:
Energy of one photon = hc /λ= (6.626 × 10-34 J s) × (2.998 × 108 m/s) / (695 × 10-9 m)
2.851 × 10-19 Joules
We know that one mole of photons contains Avogadro's number (6.022 × 1023) of photons. Therefore, the energy for 1 mol of photons will be:
Energy for 1 mol of photons = (2.851 × 10-19 J) × (6.022 × 1023)
1.718 × 104 Joules or 17.18 kJ/mol
When an atom or molecule absorbs a photon of light, the energy of the photon is transferred to the atom or molecule. The energy of a single photon is given by the equation E = hc/λ, where E is energy, h is Planck's constant, c is the speed of light, and λ is the wavelength of light. This formula can be used to calculate the energy of a single photon of light.Absorbing one photon of light will give an atom or molecule an amount of energy equal to the energy of that photon. However, when we measure the amount of light absorbed by a substance, we don't usually measure it in terms of photons.
Instead, we measure it in terms of energy per unit of time per unit of area. In the context of this problem, we are given a wavelength of light (695 nm) and asked to calculate the energy of one mole of photons. Using the equation E = hc/λ, we can calculate the energy of one photon of light at this wavelength. The value we get is 2.851 × 10-19 Joules. Since one mole of photons contains Avogadro's number (6.022 × 1023) of photons, we can calculate the energy for one mole of photons by multiplying the energy of one photon by Avogadro's number. The answer we get is 1.718 × 104 Joules or 17.18 kJ/mol.
We can use the equation E = hc/λ to calculate the energy of a single photon of light. To calculate the energy for one mole of photons, we need to know the energy of one photon and Avogadro's number.
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Like linear momentum, conservation of angular momentum is a fundamental principle which can be used to solve plyysical problems. The angular momentum of a system may remain the same unless:________
Answers
The angular momentum of a system may remain the same unless The sum of the external torques is not zero. The angular momentum of a system may remain the same unless there is an external torque acting on the system.
This principle is known as the conservation of angular momentum, which states that the total angular momentum of a system remains constant in the absence of an external torque.
Angular momentum is a vector quantity that depends on the object's mass, velocity, and distance from the axis of rotation. In many physical systems, the conservation of angular momentum can be used to analyze the motion of rotating objects, such as planets, stars, and galaxies, and explain various phenomena, such as the precession of a spinning top or the formation of spiral arms in galaxies.
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If the Earth's Moon has a radius of 1.738 x 106 meters and a mass of 7.30 x 1022 kg, what will its free-fall acceleration near its surface be
Answers
The free-fall acceleration near the surface of the Moon is approximately \(1.624 m/s^2.\)
The free-fall acceleration near the surface of the Moon can be calculated using Newton's law of universal gravitation. The formula is given by:
a = \(G * (M / r^2)\)
Where:
a is the free-fall acceleration,
G is the gravitational constant (approximately \(6.67430 × 10^-11 m^3 kg^-1 s^-2),\)
M is the mass of the Moon\((7.30 x 10^22 kg),\) and
r is the radius of the Moon \((1.738 x 10^6 meters).\)
Substituting the given values into the formula, we have:
a = \((6.67430 × 10^-11 m^3 kg^-1 s^-2) * (7.30 x 10^22 kg) / (1.738 x 10^6 meters)^2\)
Simplifying the expression, we find that the free-fall acceleration near the surface of the Moon is approximately \(1.624 m/s^2.\)
Therefore, the free-fall acceleration near the surface of the Moon is approximately \(1.624 m/s^2.\) This means that an object near the surface of the Moon will experience an acceleration of \(1.624 m/s^2\) due to the gravitational attraction between the Moon and the object. It is important to note that the free-fall acceleration on the Moon is about 1/6th of the free-fall acceleration on Earth, which is approximately \(9.8 m/s^2\). This lower acceleration is a result of the Moon's smaller mass compared to Earth.
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what velocity must a car with a mass of 1260 kg have in order to have the same momentum as a 2240 kg pickup truck traveling at 24 m/s to the east? answer in units of m/s
Answers
The velocity of the car is 46.48 m/s.
What is velocity?
velocity is directional speed of a object in motion as an induction of it's rate of change in position observed from a particular frame of reference and as measured by a particular standard of time.
Sol- The linear momentum of a body is defined as the product of its mass and its velocity, given by-
P = mv
According to the question the momentum of the truck is-
Pr=2250×25 kgm /s
Pr=56250 kgm/s
Now we can see the momentum of the car and the truck must be same that is Pc=Pr
1210×v =56250 kgm/s
v= 56250/1210
v= 46.48 m/s
Thus the velocity of the car is 46.48m/s .
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1. The temperature of the water in each of two beakers measures 50°C. One beaker contains 100 g of water, and the other beaker contains 250 g of water.
a. How does the amount of thermal energy in the two beakers compare? Explain your answer.
b. How does the average kinetic energy of the water molecules in the two beakers compare? How do you know?
Answers
1.Beaker A has less thermal energy than Beaker B
2.The water molecules in both beakers A and B have the same average kinetic energy
The temperature of the water in each of two beakers is same (50°C).
Beaker One contains (\(m_{1}\)) 100 g of water
Beaker Two contains (\(m_{2}\)) 250 g of water
Heat gained and lose by the object is depends on mass, change in temperature and specific heat.
Both beakers are made with same materials so their Specific heats and temperature are same .
Beaker B has more mass then Beaker A so Beaker A has less thermal energy than Beaker B.
2.The water molecules in both beakers A and B have the same average kinetic energy.
The temperature of an object is a measure of its internal energy. Thermal Energy is a form of Kinetic Energy because it is related to the Molecular Velocity.
When Temperature increases the velocity of the molecules ( increases or decreases) and the Kinetic Energy (increases or decreases) as Temperature decreases the velocity of the molecules ( increases or decreases) and the Kinetic Energy (increases or decreases).
so Kinetic Energy Depends on Velocity and Velocity depends on the Temperature in this problem Temperature are same so The water molecules in both beakers A and B have the same average kinetic energy.
what do you mean by Heat capacity of water?
It takes a lot of heat to increase the temperature of liquid water because some of the heat must be used to break hydrogen bonds between the molecules.
In other words, water has a high specific heat capacity, which is defined as the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius. The amount of heat needed to raise the temperature of 1 g water by 1 °C is has its own name, the calorie.
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A 15 kg mass weighs 60 N on planet X. The mass is allowed to fall freely from rest near the surface of the planet.
What is the acceleration due to gravity on planet X?
Enter your answer in the box. Your answer must be a whole number. DO NOT include any decimals.
Answers
Answer:
The answer to your question is 2
The weight we experience on our planet is the product of our mass and acceleration due to gravity. This is the force by our own weight. if an object of 15 kg mass weighs 60 on planet X, acceleration due to gravity on planet X will be 4 m/s².
What is gravitational force?Gravitational force is an attractive force by which an object attracts other objects into its center of mass. We are all standing on the surface of earth due to the gravitational pull of earth.
Gravitational force is directly proportional to the mass of the object and inversely proportional to the distance from the ground. Acceleration due to gravity is the acceleration of a moving body against the gravitational filed.
Given that the mass of the object is 15 Kg and the gravitational force or weight is 60 N. Then the acceleration due to gravity a is the ratio of its weight to the mass.
a = w/m
= 60 N/ 15 Kg
= 4 m/s².
Therefore, the acceleration due to gravity of the planet x is 4 m/s².
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An iron robot falls from rest at a great height. neglecting air resistance, what velocity will it have after 3.5 seconds?
Answers
In a uniformly assessing accelerating motion, the velocity of this specific object follows the law:
v(t) = v₀ + at
where v₀ is the initial velocity, followed by an acceleration and t stands for time.
In the given question statement, the robot starts from rest such that the initial speech achieved is zero where,
vi = 0
Now, the robot undergoes a free fall such that the acceleration is assumed as the gravitational acceleration given the,
g= 9.81m/s².
Therefore, along with the time t = 3.5s and the velocity is,
v(3.5) = 0 + (9.81m/s²) (3.5s) = 34.4m/s
Hence, the speech after it has fallen accounts for 34.3 m/s
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A graph titled change in temperature versus gravitational potential energy shows gravitational potential energy in kilojoules on the x-axis, numbered 0 to 50, and change in temperature in degrees celsius on the y-axis, numbered 0 to 12. The graph is a straight line from the (5, 1) and slants upward to (50, 11.5). Two additional points on the line are (10, 2.5) and (25, 6). Based on the graph, what kind of relationship exists between the change in temperature of the water and the gravitational potential energy of the cylinder? It is an inverse relationship. It is a direct relationship. It is an indirect relationship. It is a cyclic relationship.
Answers
Answer: (B) It is a direct relationship
Explanation:
Which answer correctly describes the grey lines in this Hering illusion? (Optical Illusions Lesson)
A close-up of a fanDescription automatically generated with low confidence
Question 1 options:
The grey lines are bent.
The grey lines are straight.
The grey lines are curly.
The grey lines are a figment of my imagination.
Answers
Answer: The grey lines are bent.
Explanation: The grey lines are bent.
The answer that correctly describes the grey lines in this Hering illusion is "The grey lines are bent." Option A. This is further explained below
What is the Hering illusion?The Hering Illusion is one of several illusions in which a major component of a basic line picture is obscured.
In conclusion, The statement for the grey lines in this Hering illusion is "The grey lines are twisted.".
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Find the acceleration
Answers
Answer:
a=5m/s
Explanation:
Forces going to the left: \(F_{3}\)
Forces going to the right: \(F_{1}\) and \(F_{2}\)
To indicate the different directions, let the forces going to the left be negative, and the sign on forces going to the right be positive.
The total forces acting on the system are:
\(F_{1}\) + \(F_{2}\) + \(F_{3}\)
100N + 80N - 30N = 150N
The overall force is therefore 150N going to the right (sign is positive). Now time to find the overall acceleration:
Force = mass * acceleration
150 = 30a
a=5m/s
A gas occupies a volume of 35.9 ml at a temperature of 22.0 C. What volume will the same gas occupy at a temperature of 28.0 C?
Answers
The volume of the gas after an increase in temperature to 28.0 C is 45.69 ml
Given DataV1 = 35.9mlT1 = 22.0 DegreesT2 = 28.0 DegreesWe know that the expression relating volume and temperature is given as
V1/T1 = V2/T2
Substituting our given data into the expression above we have
35.9/22.0 = V2/28.0
Making V2 the subject of the formula we have
V2 = 35.9*28.0/22/0
V2 = 1005.2/22.0
V2 = 45.69 ml
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