During which trial or trials is the magnitude of the average velocity the largest?
Answers
Speed is the time rate at which an object is moving along a path
Velocity is the rate of motion, speed, or action.
While Trial B and Trial D do not have the same average velocity, the only difference is the direction! The magnitudes are the same. Neither one is 'larger' than the other, and it is only because of how we chose our axes that Trial B has a positive average velocity while Trial D has a negative average velocity. In Trial C the object does not move, so it has an average velocity of zero. During Trial A the object has a positive average velocity but its magnitude is less than that in Trial B and Trial D.
For more information on average velocity click on the link below:
https://brainly.com/question/24739297
#SPJ4
Related Questions
When Simon goes to the pet store, he plans on getting a new fish for his aquarium.
Using an infinitive, what is the BEST way to revise the underlined words?
A) When Simon goes to the pet store, he plans to get a new fish for his aquarium.
B) When Simon goes to the pet store, he plans for to get a new fish for his aquarium.
C) When Simon goes to the pet store, he plans for getting a new fish for his aquarium.
D) When Simon goes to the pet store, he plans to be getting a new fish for his aquarium.
Answers
Describe a line that indicates moving backward on a graph
Answers
Answer:
time speed accelaration negatives backwards
Explanation:
A diver shines a flashlight upward from beneath the water (n = 1.33) at a 38.7 ∘ angle to the vertical.
Part A At what angle does the light leave the water?
Answers
So the angle at which the light leaves the water is 28.2°.
The angle at which the light leaves the water can be found using Snell's law, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the indices of refraction of the two media.
So, we have:
n1 sinθ1 = n2 sinθ2
here n1 is the index of refraction of the medium the light is coming from (air, in this case), θ1 is the angle of incidence (38.7° in this case), n2 is the index of refraction of the medium the light is entering (water, in this case), and θ2 is the angle of refraction (what we want to find).
Plugging in the values, we get:
1.00 sin(38.7°) = 1.33 sin(θ2)
Solving for θ2, we get:
θ2 = sin⁻¹(1.00 * sin(38.7°) / 1.33) = 28.2°
Learn more about angle Visit: brainly.com/question/29506154
#SPJ4
A non -viscous incompressible fluid is pumped steadily into the narrow end of a long tapered pipe and emerges from the wide end . The pressure at the input is greater than at the output . A possible explanation is :
Answers
Answer:
v₂ =\(( \frac{r_1}{r_2})^2 \ v_1\)
Explanation:
This phenomenon is explained by the continuity equation in fluids
v₁A₁ = v₂A₂
where the subscript 1 is for the input narrow part and the subscript 2 for the wide part
v₂ = \(\frac{A_1}{A_2} v_1\)
consider the cross section at each point
A₁ = π r₁²
A₂ = π r₂²
we substitute
v₂ =\(( \frac{r_1}{r_2})^2 \ v_1\)
therefore the exit velocity is less than the entrance velocity of the fluid.
We can also analyze the situation using Bernoulli's equation
P₁ + ρ g v₁² + ρ g y₁ = P₂ + ρ g v₂² + ρ g y²
if we assume a horizontal system y₁ = y₂
P₁-P₂ = ρ g (v₂² - v₁²)
Miranda drives her car clockwise around a circular track of radius 25 m. She
completes 13 laps around the track in 5 minutes. Find Miranda's total distance
traveled
Answers
The rate at which a body heats up by conduction is proportional to the difference between its temperature T and the temperature T s
of its surroundings. A fish at room temperature 20 ∘
C is cooked by putting it into boiling water at 100 ∘
C. After 5 minutes its temperature has risen to 30 ∘
C. How long will it take to be done 60 ∘
C ?
Answers
It will take 2.857 minutes (or about 2 minutes and 51 seconds) for the fish to reach a temperature of 60 °C.
To determine the time it will take for the fish to reach a temperature of 60 °C, we can use the principle of heat conduction and the concept of temperature difference.
We know that the rate of heating by conduction is proportional to the temperature difference between the body and its surroundings. Therefore, we can write the following equation:
(T - Ts) = k * t
where T is the temperature of the fish, Ts is the temperature of the surroundings (boiling water), k is the proportionality constant, and t is the time.
Given that the initial temperature of the fish is 20 °C and it takes 5 minutes to reach 30 °C, we can substitute these values into the equation:
(30 - 100) = k * 5
-70 = 5k
Solving for k, we find k = -14.
Now we can use this value of k to find the time it will take for the fish to reach 60 °C:
(60 - 100) = -14 * t
-40 = -14t
Dividing both sides by -14, we get t = 2.857 minutes.
To know more about temperature refer here
https://brainly.com/question/7510619#
#SPJ11
An astronaut throws a basketball across the ship. The force pushes the
astronaut backwards as well.
Mr. Van Wey pushes down on the gym floor hard with his feet. The floor pushes
him back and he moves upwards to dunk the basketball.
(Write your own example of pushing on an object and the object pushing back
for N3L.)
3:23 AM
Answers
Answer:
two people trying to punch the eachother and then their fists collide
The probability distribution for a
random variable x is given in the table.
-10
-5
0
5
10
15
20
Probability
.20
.15
.05
.1
.25
.1
.15
Find the probability that x < 20
Answers
Answer:
Explanation:
6
Probability for X<20 for given probability distribution is 0.85.
Probability is concern with possibility. It is a branch of statistics which deals with the occurrence of a random event. Sum of probabilities for a particular event is one. Probability has been introduced in statistics to predict how likely events are to happen. Probability means an extent to which something is likely to happen. To find the probability of a particular event to occur, firstly we must know the total number of possible outcomes. The distribution of probability for an event is called as probability distribution.
for example when a coin is tossed, it gives two possible outcomes Head and Tail. There is 50% of chance of getting Head or tail.
The Total probability is the sum of all the probabilities and it is always one.
In this problem Probability that x < 20,
P(x<20) = P(x<-10)+P(x<-5)+P(x<0)+P(x<5)+P(x<10)+P(x<15)
P(x<20) = 0.20+0.15+0.05+0.1+0.25+0.1 = 0.85
To know more about Probability :
https://brainly.com/question/30034780
#SPJ7.
True or False: All waves transmit energy, but not matter, from one location to another.
Answers
Also Giving BRAINLIEST!!
2. In Fig. 2-7 a mass m of 12.00 kg is pulled, at constant speed, along an inclined plane which makes an angle with the horizontal.
(a) What is the value of angle A if we want to raise the mass m to a height of h = 2.00 m?
(b) What is the mechanical advantage produced by the inclined plane? We assume that the inclined plane is frictionless.
Answers
Answer:
As P is increased from mg(sinθ−μcosθ) to mg(sinθ+μcosθ) frictional force will change from mgcos ( upwards parallel to inclined plane) to 0 to mgcos (downwards parallel to inclined plane). Under the approximation of linear variation of P the correct option is A.
A constant force F=7i−5j−5k moves an object along a straight line from point (−6,−1,−1) to point (−9,−10,11). Find the work done if the distance is measured in meters and the magnitude of the force is measured in newtons. Work: Nm
Answers
To find the work done by the constant force, we can use the formula:
Work = Force Displacement cos(theta)
where:
Force is the magnitude of the force vector,Displacement is the displacement vector,Theta is the angle between the force and displacement vectors.In this case, the force vector is given as F = 7i - 5j - 5k, and the displacement vector is given as d = (Δx, Δy, Δz) = (-9 - (-6), -10 - (-1), 11 - (-1)) = (-3, -9, 12).
To calculate the work, we need to find the dot product of the force and displacement vectors, and then multiply it by the magnitude of the force:
Work = F · d = |F| * |d| * cos(theta)Calculating the dot product:
F · d = (7 * -3) + (-5 * -9) + (-5 * 12) = -21 + 45 - 60 = -36Now, let's find the magnitudes:
|F| = sqrt((7)^2 + (-5)^2 + (-5)^2) = sqrt(49 + 25 + 25) = sqrt(99)|d| = sqrt((-3)^2 + (-9)^2 + (12)^2) = sqrt(9 + 81 + 144) = sqrt(234)Finally, we can calculate the work:
Work = -36 = |F| * |d| * cos(theta) = sqrt(99) * sqrt(234) * cos(theta)Therefore, the work done by the force is -36 Nm.
About Constants
In mathematics, a constant or constant is a fixed value as opposed to an arbitrary variable. Constants are used in a variety of disciplines, such as physics, geometry and appear in many other forms of mathematics.
Learn More About Constants at https://brainly.com/question/27983400
#SPJ11
how does the text compare the energy received from the sun and the energy lost by Earth back into space?
A. The energy from the sun is greater than the energy lost by the earth.
B. The energy from the sun is less than the energy lost by the earth.
C. The energy from the sun is the same as the energy lost by the earth.
D. The energy from the sun is not equal to the energy lost by the earth.
Answers
Answer:
is achieved as the energy received from the Sun balances the energy lost by the Earth back into space. ... Shortwave radiation reflected back to space by clouds. -7. Shortwave radiation reflected to space by the earth's surface.
The earth-atmosphere energy balance is achieved as the energy from the Sun is the same as the energy lost by the Earth. Thus, the correct option is C.
What is the Earth-atmosphere energy balance?The earth-atmosphere energy balance is the balance between the incoming energy from the Sun and the outgoing energy or the energy lost from the Earth. Energy that is released from the Sun is emitted in the form of shortwave light and ultraviolet radiations which carry large amount of energy.
The earth-atmosphere energy balance is achieved as the energy received from the Sun balances the energy lost by the Earth's surface back into space. Through this mechanism, the Earth maintains a stable average temperature and therefore also a stable climate on the planet.
Therefore, the correct option is C.
Learn more about Energy transfer here:
https://brainly.com/question/8306722
#SPJ5
what is the relationship between the inbound methodology and the concept of a flywheel? The inbound methodology has arrows to show the direction your flywheel should spin.
The inbound methodology is shown as a circle. It presents the flywheel that will drive your businesses growth.
The only way to make your company operate like a flywheel is to use inbound techniques.
The inbound methodology represents a funnel that exists in one part of your company’s flywheel.
Answers
Arrows in the inbound methodology circle represent the direction that your business should spin to keep the flywheel moving and to achieve sustainable growth.
How are the inbound methodology and the concept of a flywheel related to each other in driving business growth?The inbound methodology and the concept of a flywheel are closely related as they both focus on the process of attracting, engaging, and delighting customers to drive business growth. The inbound methodology is a strategy that uses content and digital marketing techniques to attract potential customers, convert them into leads, close sales, and delight them as customers. The flywheel, on the other hand, is a metaphor for the circular process of creating momentum in your business by continually attracting, engaging, and delighting customers. The inbound methodology represents one part of the flywheel, as it helps to attract and convert leads, but the entire process of the flywheel requires ongoing efforts to delight customers and turn them into promoters. Therefore, the arrows in the inbound methodology circle represent the direction that your business should spin to keep the flywheel moving and to achieve sustainable growth.
Learn more about methodology circle
brainly.com/question/31058194
#SPJ11
A 120 N accelerates an object 1. 2 m/s? What is the mass of the object?
Answers
Answer:
m = 100 kg
Explanation:
F = ma
120 = m × 1.2
m = 120 ÷ 1.2
m = 100 kg
Types of Spectra 5) Stars like our Sun have low-density, gaseous atmospheres surrounding their hot, dense cores. If you were looking at the spectra of light coming from the Sun (or any star), which of the three types of spectrum would be observed? Explain your reasoning.
Answers
The spectrum observed from the Sun (or any star) would exhibit an absorption spectrum. This is because the outer gaseous atmosphere of the star absorbs specific wavelengths of light, resulting in dark absorption lines in the spectrum.
In the cooler, lower-density outer atmosphere, where white light from the star travels, some atoms or molecules in the atmosphere absorb photons with particular energy. In the spectrum, these absorptions show up as black lines at specific wavelengths. The specific set of absorption lines that each element or molecule generates results in a distinctive pattern that can be used to identify the elements that are present in the star's atmosphere.
The absorption spectrum offers insightful data on the chemical make-up and physical characteristics of the star. Astronomers can ascertain the elements present, their abundances, and other characteristics like the temperature, pressure, and velocity of the star's atmosphere by examining the absorption lines.
To know more about absorption spectrum here https://brainly.com/question/10252035
#SPJ4
A woman rolls a 8 kg bowling ball with an initial velocity of 10 m/s down a 20 meter tall hill. If the ball
rolls down the hill, then up a 5 meter tall hill, what is the velocity of the ball when it reaches the top of
the second hill?
Answers
Answer:
The first step is to calculate the potential energy of the ball at the top of the first hill using the formula PE = mgh, where m is the mass of the ball, g is the acceleration due to gravity, and h is the height of the hill. PE = (8 kg) x (9.8 m/s^2) x (20 m) = 1568 J Next, we can use the law of conservation of energy, which states that the total energy of a closed system remains constant. This means that the potential energy at the top of the first hill must be equal to the kinetic energy at the bottom of the hill, since there is no external work done on the ball. So, using the formula KE = 1/2mv^2, where v is the velocity of the ball, we can solve for v: KE = 1
a cylinder weighs 29.2 grams what is its density? and will it float in water?
Answers
In order to determine the density of a cylinder, we need to know its mass and volume. The mass of the cylinder is given as 29.2 grams, but the volume is not provided. Without the volume, it is impossible to calculate the density of the cylinder.
As for whether or not the cylinder will float in water, that also depends on its density. If the density of the cylinder is less than the density of water (1), then it will float. However, without knowing the density of the cylinder, it is impossible to determine whether or not it will float in water.
Planet
P
Note: Figure not drawn to scale.
In the figure above, a spaceship (not shown) from point P is traveling along the dashed
line towards the planet. The net gravitational force at point P is 4.0 x 1010 N. Assume that
any motion of the planet is negligible.
If the spaceship stops halfway between the planet and point P, what happens to the magnitude of the net gravitational force exerted on the spaceship by the planet?
o The net gravitational force stays constant.
o The net gravitational force is half as great.
o The net gravitational force is twice as great.
The net gravitational force is four times as great
Answers
If the spaceship stops halfway between the planet and point P, the net gravitational force is four times as great.
Gravitational force between two objects
The gravitational force between two objects is determined from Newton's second law of universal gravitation.
F = GmM/R²
where;
R is the distance between the spaceship and the planet.when the distance halved
F = GmM/(0.5R)²
F = GmM/(0.25R²)
F = 100GmM(25R²)
F = 4GmM/R²
Fnet = 4F
Thus, if the spaceship stops halfway between the planet and point P, the net gravitational force is four times as great.
Learn more about gravitational force here: https://brainly.com/question/72250
#SPJ1
Calculate the displacement of a motorcycle that accelerates forward from rest to 7.0 m/s in 3.5 s.
I need solution and statement.
Answers
Answer:
12.25 meters
Explanation:
s=1/2(v+u)t
s= displacement
v= final velocity
u= initial velocity
t= time
7m/s+0m/s divide by 2= 3.5 m/s velocity Times 3.5 seconds= 12.25 meters
which type of electromagnetic radiation has the greatest energy?
Answers
The type of electromagnetic radiation with the greatest energy is gamma radiation.
Gamma rays have the highest frequency and shortest wavelength among all forms of electromagnetic radiation.
They are produced by nuclear reactions, radioactive decay, and certain high-energy particle interactions.
Due to their high energy, gamma rays can penetrate through most materials and have the ability to ionize atoms, meaning they can remove electrons from atoms they interact with.
This high energy and ionizing capability make gamma rays potentially harmful to living organisms.
In the electromagnetic spectrum, gamma rays are located at the highest energy end, beyond X-rays.
The energy of electromagnetic radiation increases as you move from: radio waves< microwaves< infrared< visible light< ultraviolet< X-rays < and gamma rays.
Thus, gamma rays have the greatest electromagnetic radiation.
To know more about Electromagnetic radiation, click here:
https://brainly.com/question/29646884
#SPJ4
Gamma rays have the greatest energy among all types of electromagnetic radiation.
Electromagnetic radiation consists of various types, each with different energy levels. The energy of electromagnetic radiation is determined by its frequency and wavelength. The higher the frequency and the shorter the wavelength, the greater the energy.
Among the different types of electromagnetic radiation, gamma rays have the greatest energy. Gamma rays have the highest frequency and the shortest wavelength in the electromagnetic spectrum. They are produced by nuclear reactions and radioactive decay processes.
Gamma rays are highly energetic and can penetrate through most materials. They are used in various fields such as medicine, industry, and research. However, due to their high energy, gamma rays can also be harmful to living organisms if exposed in large amounts.
Learn more:
About electromagnetic radiation here:
https://brainly.com/question/10759891
#SPJ11
T/F : each of the links ab and cd is made of steel and has a uniform rectangular cross section
Answers
The True, each of the link's AB and CD is made of steel liquid and has a uniform rectangular cross section.
The problem states that both link's AB and CD are made of steel liquid which indicates that they have the same material composition. Additionally, the problem specifies that both links have a uniform cross section. This means that the shape and dimensions of the cross-sectional area are consistent throughout the entire length of each link. The term "rectangular" is used to describe the shape of the cross section, suggesting that each link has a straight-edged, four-sided shape with right angles at each corner. In conclusion, based on the information provided, it can be determined that each of the link's AB and CD is made of steel and has a uniform rectangular cross section.
learn more about steel liquid here.
https://brainly.com/question/29266446
#SPJ11
Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
An electron is in motion at 4.0 × 10^6 m/s horizontally when it enters a region of space between two parallel plates, as shown, starting at the negative plate. The electron deflects downwards and strikes the bottom plate. The magnitude of the electric field between the plates is 4.0 x 10^2 N/C and separation between the charged plates is 2.0 cm.
Determine the horizontal distance travelled by the electron when it hits the plate.
Answers
Answer:
Given that
speed u=4*10^6 m/s
electric field E=4*10^3 N/c
distance b/w the plates d=2 cm
basing on the concept of the electrostatices
now we find the acceleration b/w the plates to find the horizontal distance traveled by the electron when it hits the plate.
acceleration a=qE/m=\(1.6*10^{-19}*4*10^3/9.1*10^{-31} =0.7*10^{15}\)=\(7*10^{14}\) m/s
now we find the horizontal distance traveled by electrons hit the plates
horizontal distance
\(X=u[2y/a]^{1/2}\)
=\(4*10^6[2*2*10^{-2}/7*10^{14}]^{1/2}\)
=\(3*10^{-2}\)= 3 cm
Question 7 of 20
A technician is checking a circuit for voltage. In this instance, the voltage reads 4.2v instead of 5v
at the connector. What caused the voltage to read lower than normal?
High current flow
Low resistance
High resistance
High voltage
Next
Answers
Answer:
High current flow
Explanation:
Generally , the measuring instruments used by technician also have some resistance, though its value is very low . So when high current is present in the circuit , that current also passes through the instrument which creates a good potential drop across the instrument . So the external voltage used in the circuit measures less voltage .
A train is climbing a gradual hill. The weight of the train creates a downhill force of 150,000 newtons. Friction creates an additional force of 25,000 newtons acting in the same direction (downhill). How much force does the train’s engine need to produce so the train is in equilibrium.
Answers
The force produced by the train's engine will be 175000N.
Force is an external agent that has the power to alter an object's state of motion or rest. In a brief, force is a vector quantity that's also defined as a push or pull exerted on an object as a result of the object's contact with another object. The Newton (N) is the unit of force F.
F = ma
Here, F is force, m is mass and a is acceleration of the object.
We are given here,
The force by the train weight = \(Fw\) = 150,000N
The force creates by the friction = \(F_{f}\) = 25,000N
Thus , to get the total force of the train's engine by adding force by weight and force by friction is given as,
\(F_{t} = F_{w}+ F_{f}\)
Then for getting total force of the train's engine putting above values in the expression ,
\(F_{t} = 150,000 N +25,000N\\F_{t} = 175,000N\)
Hence, the train’s engine has to produce 175000N force to become in equilibrium.
To know more about force
https://brainly.com/question/14447938
#SPJ1
A charged object has 82 protons, 82 neutrons, and 109 electrons. What is its overall charge?
Answers
Protons have + charge
Neutrons have no charge
Electrons have negative charge
So 82-109=-27
The overall charge of an object that has 82 protons, 82 neutrons, and 109 electrons is -27. Details about charge can be found below.
How to calculate overall charge?The overall charge of an atom can be calculated by subtracting the number of electrons from the number of protons.
The proton number represents the number of positively charged atom while the electron number represents the number of negatively charged atom.
According to this question, a charged object has 82 protons, 82 neutrons, and 109 electrons. The overall charge of the atom is calculated as follows:
Overall charge = 82 - 109
Charge = -27
Therefore, the overall charge of an object that has 82 protons, 82 neutrons, and 109 electrons is -27.
Learn more about charge at: https://brainly.com/question/2279918
#SPJ2
2 Using the formula GPE = mxgxh, what are
you solving for?
A. Potential Energy
B. Kinetic Energy
C. Electromagnetic Energy
D. Mass Energy
Answers
Answer:
A
Explanation:
THAT is th equation for Potential Energy
A student starts at position (4, 4) m and undergoes three displacements:d1= (2, - 3) m, d2 = (- 5, 0) * m , and d3= (1, 6) * m
Answers
Initial position ( 4, 4 )
Add the displacements
d1 ( 2 , - 3 ) = ( 4 + 2 , 4 - 3 ) = ( 6 , 1 )
d2 ( -5,0 ) = ( 6 - 5, 1 + 0 ) = (1,1 )
d3 (1, 6 ) = ( 1 + 1 , 1 + 6 ) = ( 2 , 7 )
Final position (2, 7 )
Graph:
Downhill ski racing requires the racer to maintain the tuck position for over a minute while they are going extremely fast therefore the muscle fibers recruited must not fatigue easily or the scare could be severely injured which type of muscle fiber is predominantly recruited during downhill ski racing?
Answers
Answer:
slow twitch fibers
Explanation:
Slow twitch fibers can maintain a force for a longer period of time than fast twitch fibers
A car start moving from the rest.If the acceleration of the car is 2m/2 for 10 seconds what will be it final velocity
Answers
Answer:
20 m/s
Explanation:
Applying,
a = (v-u)/t.................... Equation 1
Where a = acceleration of the car, v = final velocity of the car, u = initial velocity of the car, t = time.
make v the subject of the equation
v = u+at.............. Equation 2
From the question,
Given: u = 0 m/s(start from rest), a = 2 m/s², t = 10 seconds
Substitute these values into equation 2
v = 0+(2×10)
v = 20 m/s
What happens to water molecules when a large quantity of thermal energy is added to water in the liquid state?
Answers
Quizlet can help you also