Two objects undergo simple harmonic motion on a
smooth table. Object B has twice the frequency and
twice the amplitude of object A. How does the
angular speed, maximum speed, and maximum
acceleration of object B compare to that of object
A? Object B has:
a. one-half the angular speed, one-fourth the
maximum speed, and one-sixth the maximum
acceleration of object A.
b. twice the angular speed, quadruple the
maximum speed, and six times the maximum
acceleration of object A.
c. twice the angular speed, twice the maximum
speed, and eight times the maximum
acceleration of object A.
d. twice the angular speed, quadruple the
maximum speed, and eight times the maximum
acceleration of object A.
Answers
The acceleration is maximum when the displacement of the object is maximum.
We understand that speed is most when y=zero, displacement is zero, and acceleration is zero, this means that the machine is in equilibrium. therefore, at a factor in simple harmonic motion, the maximum pace can be calculated by the usage of the formulation v=Aω. the rate may be most in easy harmonic movement, while the acceleration is zero.
The pendulum oscillating backward and forward from the suggested role is an example of easy harmonic movement. Bungee leaping is an example of simple harmonic motion. The jumper oscillates up and down in the present process SHM because of the pliancy of the bungee wire.
The maximum displacement of the bob from its implied role. OA or OB is called its amplitude. because the bob is at its lowest position on point O. Its potential power is minimal whilst its kinetic power is maximum.
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Related Questions
You are lying in bedA)List the internal forces that are acting on the mattressB)What is the external force acting on the mattress
Answers
Given:
Someone is lying on the bed.
To find:
A) the internal forces on the mattress
B) The external forces on the mattress
Explanation:
A) The internal forces acting on the mattress are:
1. When someone lies on the mattress, there is tension inside the mattress.
2. There is compression on the mattress.
3. Also there are torsion and shear
B) The external force:
The external forces are the
1. The force of gravity or the weight of the person on the mattress
2. The normal reaction on the mattress
3. The friction between the mattress and the person
What is the kinetic energy of a 2000kg boat moving at 5m/s?
Answers
Answer:
25000 J or 25 kJ
Explanation:
K = 1/2 mv^2
where mass is in kilograms kg
and velocity is in metres per seconds m/s
Here, m = 2000, v = 5
v^2 = 5*5 = 25
1/2 mv^2 = 1/2 * 2000 * 25
= 50000/2
= 25000
Hope it helps!
Star A and star B are nearly the same distance from Earth. Star A is half as bright as star B. Which of the following statements must be true? a. $\operatorname{Star} … Star A and star B are nearly the same distance from Earth. Star A is half as bright as star B. Which of the following statements must be true? a.star is farther away than star b. star is twice as luminous as star . c. star is hotter than star d star is larger than star
Answers
Given that Star A and Star B are nearly the same distance from Earth. And, Star A is half as bright as Star B, Star B is twice as luminous as Star A. Option b.
The luminosity of a star is related to the star's size, temperature, and age. It is a measure of the total amount of energy emitted by the star every second. Therefore, if we know that two stars have the same distance from Earth and one is half as bright as the other, the only conclusion we can draw is that the star which is twice as luminous as star A is star B.
Hence, the correct option is as follows :Option (b): Star B is twice as luminous as Star A. There is no sufficient information available to determine which star is farther away or hotter or larger. Therefore, options (a), (c), and (d) are incorrect.
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What is the momentum of a 2.0-kg object that has a velocity of 8.0 m/s ?
Please help
Answers
Answer:16 Newton’s
Explanation:The equation for finding momentum is momentum= mass x velocity,so
2.0x8.0=16 Newton’s
Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s (about 100 miles per hour) when the jet stream descends during early spring. Approximately what is the force due to the Bernoulli effect on a roof having an area of 200 m2
Answers
The Bernoulli effect is a phenomenon in fluid dynamics where an increase in fluid velocity leads to a decrease in pressure.
In the case of winds in Boulder, Colorado, with sustained speeds of 45.0 m/s, there would be a decrease in pressure above the roof due to the Bernoulli effect.
To calculate the force due to the Bernoulli effect on a roof with an area of 200 m2, we need to know the pressure difference caused by the wind. Without knowing more specific details about the roof, such as its shape and height, it's difficult to accurately calculate this pressure difference.
However, we do know that the Bernoulli effect on the roof would be one factor contributing to the overall force of the wind on the roof. Other factors, such as the direct impact of the wind and the weight of any snow or debris that the wind may carry, would also need to be considered when assessing the potential damage or structural integrity of the roof.
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Which of the following will best transport electrons around an electrical circuit
Answers
Answer:
b is correct!!!!!!!!!!!
The best transport electrons around an electrical circuit are connected in series. Thus, the correct answer would be option (B) are connected in series.
What is alternating current (AC)?An alternating current (AC) circuits continuously switches the direction of electron flow back and forth, which can result in fluctuations in voltage and current.
On the other hand, in a direct current (DC) electrical circuit, the electrons flow in one direction, from the negative terminal of the power source to the positive terminal. This unidirectional flow of electrons provides a consistent and stable flow of electricity throughout the circuit.
Connecting components in series mean that they are connected end-to-end, and the current flowing through them is the same.
Overall, the best option to transport electrons around an electrical circuit are to connect in series.
Therefore, the correct answer would be option (B) are connected in series.
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The speed of apendulum bob is largest when it isdirectly below the support. Give twoways you could increase this speed.
Answers
The speed of the pendulum is dependent on the length of the pendulum and the angle of displacement.
On increasing the length of the pendulum and the angle of displacement, the extreme position of the pendulum increases, or displacement from its mean position increases.
This results in an increase of potential energy at the extreme points.
When the pendulum bob reaches the mean position, all the potential energy gets converted to kinetic energy.
This increase in kinetic energy results in increased speed.
Thus, the speed of the pendulum can be increased by increasing the length and the angle of displacement from the mean position.
if i move 3 m east and 4 m north what is my displacement
Answers
If I move 3 m east and 4 m north, then my displacement would be 5m.
What do you understand by displacement?In geometry and mechanics, displacement is defined as a vector whose length is the shortest distance from initial to the final position of a point P undergoing the motion.
If an object moves relative to the reference frame—for example, if professor moves to the right relative to whiteboard or passenger moves toward the rear of airplane—then object's position changes. And this change in position is known as displacement.
Given AB= 3m east and BC= 4m north
AC= √ 3² + 4²= 25
So, AC, displacement = 5m
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Steam flows through a nozzle at mass flow rate of
m =0.1 kg/s with a heat loss of 5 kW. The enthalpies at inlet and exit are 2500 kJ/kg and 2350 kJ/kg, respectively. Assuming negligible velocity at inlet (C 1 ≈0), the velocity (C2 ) of steam (in m/s) at the nozzle exit is (correct to two decimal places)
Answers
If negligible velocity at inlet (C 1 ≈0), the velocity (C2) of steam (in m/s) at the nozzle exit is 447.21 m/s.
According to question:
The steady flow energy equation for steady flow devices
m (h1 + ((c1)2/2) + z1g) + Q = m (h2 + ((c2)2/2) + z2g) + Wcv
C1 = 0
Wcv = 0
z1 = z2
mh1 + Q = mh2 + m((C2)2/2)
m((C2)2/2) = m(h1-h2) + Q
0.1 × ((C2)2/2) × 10-3 = 0.1(2500-2350) -5
C2 = 447.21 m/s
Thus, the negligible velocity at inlet (C 1 ≈0), the velocity (C2) of steam (in m/s) at the nozzle exit is 447.21 m/s.
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Assume the motions and currents mentioned are along the x axis and fields are in the y direction.(a) Does an electric field exert a force on a stationary charged object? Yes/No(b) Does a magnetic field do so? Yes/No
Answers
Yes, an electric field exerts a force on a stationary charged object. This is because the electric field is composed of electric lines of force that travel in a straight line and exert a force upon the stationary charged object.
The magnitude of the force depends on the strength of the electric field and the charge on the object. No, a magnetic field does not exert a force on a stationary charged object. This is because a magnetic field is composed of magnetic lines of force that travel in circles and therefore do not exert a force on a stationary object.
However, a magnetic field does exert a force on a moving charged object, such as a current-carrying wire. This force is known as the Lorentz force, which is a combination of both electric and magnetic forces.
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Use Newton's laws to find an expression for the net external force acting on the car. Ignore air resistance. The vertical forces balance. The net force is in the horizontal direction: F 4 where total = f f is the friction force in each wheel
Answers
According to Newton's second law, the expression of the external force on the car is \(m\times a = F_{total} - 4\times f\).
To find the net external force acting on the car, we can apply Newton's laws, specifically, Newton's Second Law, which states that the net force acting on an object is equal to the product of its mass and acceleration (\(F_{net} = m\times a\)).
Since the vertical forces balance, we only need to consider the horizontal forces, which are the applied force F_total and the friction force in each wheel (f).
Determine the net horizontal force
The net horizontal force (F_net) is the difference between the applied force F_total and the total friction force. Since there are 4 wheels, the total friction force is 4 times the friction force in each wheel (\(4\times f\)).
So, \(F_{net} = F_{total} - 4\times f\).
According to Newton's Second Law,
\(F_{net} = m\times a\),
where m is the mass of the car and a is its acceleration.
Combine the equations we can write the equation as follows:
\(m\times a = F_{total} - 4\times f\).
Thus, the expression for the net external force acting on the car, taking into account the friction force in each wheel and ignoring air resistance is \(m\times a = F_{total} - 4\times f\).
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Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.10×10^6 N
, one at an angle 17.0 ∘
west of north, and the other at an angle 17.0 ∘
east of north, as they pull the tanker a distance 0.630 km
toward the north. What is the total work done by the two tugboats on the supertanker?
Express your answer in joules, to three significant figures.
Answers
To pull the tanker 0.630 km total work to be done is 1.871 × 10⁹ Joule.
What is force?The definition of force in physics is: The push or pull on a massed object changes its velocity.
An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
Resultant force acting on the tugboat = √2 × 2.10 × 10⁶ N.
To pull the tanker 0.630 km, that is, 630 m, work done = force × displacement
= √2 × 2.10 × 10⁶ N × 630 m
= 1871004543.01 Joule.
= 1.871 × 10⁹ Joule.
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Which statement best describes a physical change?
O Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will
remain the same.
O Changes can occur to certain physical properties of the substance, but the overall shape of the substance will
remain the same.
O Changes can occur to physical properties of a substance, but the chemical composition of the substance remains
the same.
O Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains
the same.
Mark this and return
Save and Exit
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Submit
Answers
Answer:
The statement that best describes a physical change is:
"Changes can occur to certain physical properties of a substance, but the chemical composition of the substance remains the same."
A physical change refers to a change in the physical properties of a substance, such as its size, shape, color, or state of matter, without changing its chemical composition. This means that the atoms and molecules that make up the substance remain the same before and after the change.
Explanation:
How are representative democracies and direct democracies similar?
In both, elected officials meet to make laws.
The power lies with the people in both types of government.
Both types of government work well in countries with large populations.
In both, citizens often represent themselves in voting on government decisions.
BRAINLYIST IS THE REWARD
Answers
Answer:
The answer is Both types of government work well in countries with large populations.
Explanation:
Answer:
its d
Explanation:
The flow of air caused by blend in the blank creates distant blank on earth surface
Answers
Question:
The flow of air caused by _____ and the Coriolis effect creates distinct _____ on Earth's surface.
Answer:
Differences in heatingWind patternsExplanation:
The flow of air caused by variations in the rate at which the different parts are heated up as well as the Coriolis effect combine to create distinct wind patterns on Earth's surface.
The Coriolis Effect is used to describe a "force" that causes things (like objects, planes, air currents) traveling long distances around the Earth to appear to bend as they move rather than in a straight line.
Cheers
The moon completes one (circular) orbit of the earth in 23.7 days. The distance from the earth to the moon is 3.84×10^8m. Calculate the centripetal acceleration.
Answers
Given that distance of moon from the earth is, R= 3.84 x 10^8 m
Also, time taken to complete one revolution is, T= 23.7 days = 2047680 seconds
Mass of the moon is, m= 7.347 Kg
To find the centripetal acceleration,
\(a_c=\frac{m4\pi^2R}{T}\)Substituting the values, we get
\(undefined\)Why does eating less meat conserve more water than just eating plants?
Answers
Answer:
Studies show that eating fewer animal-based products could reduce water use since animal production uses more water than crops do. In addition, reducing the amount of food that's lost or wasted at various points in the food supply chain could feed about 1 billion extra people while simultaneously reducing water use.
Every food and beverage product we consume: from soda to pineapples to cheese crackers and pork chops, etc. requires water for its production. Obviously, fruits and veggies need water. That’s a given, but surprisingly, there is another group of foods that is the biggest water guzzler of them all and that is animal products. Meat, dairy, and eggs require more water to “produce” than any other food out there.
Two students are watching a person riding a skateboard up and down a ramp. Each student shares what they think about the energy of the skateboarder as they ride up and down the ramp.
Elisa: I think the skateboarder has the more total energy at the top bottom of the ramp than the bottom of the ramp.
Raymond: I think the skateboarder has the same total energy at all points on the ramp.
Which student do you agree with? Why?
Answers
Answer:
The correct option is;
Raymond: I think the skateboarder has the same total energy at all points on the ramp
Explanation:
The total energy, also known as the total mechanical energy, is the sum of the kinetic and potential energies of the skateboarder
Given that the potential energy is the energy gained due to elevation, the maximum potential energy is obtained at the top of the ramp, while the maximum kinetic energy, which is the energy due to motion, is at the bottom of the ramp where the skateboarder moves fastest.
However, by the energy conservation principle, the kinetic energy of he skateboarder comes from the conversion of the potential energy, such that the total energy is the same at any particular point on the ramp.
Which factor has the greatest effect on the strength of an electromagnet?
A. The position of the ammeter in the circuit
B. The number of coils of wire around the core
C. The type of insulation that covers the wire
D. The distance between the battery and the electromagnet
Answers
B. The number of coils of wire around the core
Answer:
B.
Explanation:
The number of coils of wire around the core
Find a unit vector perpendicular to the vectors given A=4i+2j+2k and B=4i-4j+8k.
Answers
The cross product of A and B is perpendicular to both A and B.
A × B = (4i + 2j + 2k) × (4i - 4j + 8k)
A × B = 16 (i × i) - 16 (i × j) + 32 (i × k) + 8 (j × i) - 8 (j × j) + 16 (j × k) + 8 (k × i) - 8 (k × j) + 16 (k × k)
A × B = -16 (i × j) - 32 (k × i) - 8 (i × j) + 16 (j × k) + 8 (k × i) + 8 (j × k)
A × B = -16k - 32j - 8k + 16i + 8j + 8i
A × B = 24i - 24j - 24k
The magnitude of A × B is
||A × B|| = 24 ||i - j - k|| = 24√3
Dividing A × B by its magnitude gives a unit vector,
(A × B)/||A × B|| = 1/√3 (i - j - k)
The propeller in the previous problem slows from 475 rev/min to 187 rev/min in 4.00 s. What is its angular acceleration?
Answers
The angular acceleration of the propeller is 7.54 rad/s²
Angular acceleration:This can be defined as the rate of change of angular velocity. The S.I unit of angular acceleration is rad/s.
The angular acceleration of the propeller can be calculated using the formula below.
⇒ Formular:
∝ = (ω-ω')/t................. Equation 1⇒ Where:
∝ = angular acceleration of the propellerω = final angular velocityω' = initial angular velocityt = time.From the question,
⇒ Given:
ω' = 475 rev/min = (475×0.10472) rad/s = 49.742 rad/sω = 187 rev/min = (187×0.10472) = 19.583 rad/st = 4 s⇒ Substitute these values into equation 1
∝ = (19.583-49.742)/4∝ = -30.159/4∝ = -7.54 rad/s².Note: The negative sign tells that the propeller is slowing down.
Hence, The angular acceleration of the propeller is 7.54 rad/s²
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Help ASAP please I can’t figure it out and it’s making me stressed
Answers
Explanation:
may I ask what it is on because I might be able to help out
7/21/22, 7:37 AMProblem Set ThreeNotes: Use 9.8 m/s 2 for the acceleration due to gravity. Formust be expressed in m/sLaw calculations, mass must be expressed in kg and velocity.An automobile weighs 2000lb. Calculate the weight of the car in N and it’s mass in kg.
Answers
Given:
The mass of the automobile is
\(m=2000\text{ lb}\)To find:
The weight of the car in N and its mass in kg
Explanation:
We know,
\(1\text{ lb=0.454 kg}\)So, the mass of the automobile is
\(\begin{gathered} m=2000\times0.454 \\ =908\text{ kg} \end{gathered}\)A 19.7 kg sled is pulled with a 42.0 N force at a 43.0° angle, across ground where μ₁ = 0.130.
What is the normal force on the sled?
Answers
The following information is provided in the problem: A sled with a weight of 19.7 kg is pulled with a force of 42.0 N at an angle of 43.0° across ground where μ₁ = 0.130. We need to find out the normal force that is exerted on the sled.
Let us examine each of the forces acting on the sled.The weight of the sled is equal to its mass multiplied by the acceleration due to gravity. Therefore, the weight of the sled is:mg = 19.7 kg x 9.8 m/s² = 193.06 N.The force exerted on the sled can be divided into two components: one that is parallel to the ground and one that is perpendicular to the ground.The force parallel to the ground is:F₁ = 42.0 N x cos(43.0°) = 30.56 N.The force perpendicular to the ground is:F₂ = 42.0 N x sin(43.0°) = 28.30 N.The frictional force is equal to the coefficient of friction multiplied by the normal force. Therefore, we need to find the normal force on the sled in order to calculate the frictional force. Since the sled is not accelerating vertically, the normal force is equal to the weight of the sled plus the force perpendicular to the ground. Therefore, N = mg + F₂N = 193.06 N + 28.30 N = 221.36 N.The frictional force is:Fr = μ₁ x NFr = 0.130 x 221.36 N = 28.77 N.Thus, the normal force exerted on the sled is 221.36 N.For such more question on perpendicular
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Which observation supports a model of the nature of light in which light acts as a wave?
A. Constructive interference
B. Temperature change
C. Blackbody radiation
D. Photoelectric effect
Answers
Answer:
Explanation:
Hope this helps!
Answer:
a. constructive interference
Explanation:
100% correct
A steady electric current flows through a wire. if 6.06.0 c of charge passes a particular spot in the wire in a time period of 3.03.0 s, what is the current in the wire?
Answers
The current in the wire can be determined using the formula:
Current = Charge / Time
In this case, the charge passing through the wire is 6.0 C and the time period is 3.0 s. Plugging in these values into the formula, we get:
Current = 6.0 C / 3.0 s
Simplifying the equation, we find that the current in the wire is 2.0 A (amperes).
The current in the wire is 2.0 A.
The current in a wire can be defined as the rate at which charge flows through it. It is measured in amperes (A). To calculate the current, we can use the formula Current = Charge / Time. In this question, the charge passing through the wire is given as 6.0 C (coulombs) and the time period is 3.0 s (seconds). Substituting these values into the formula, we get Current = 6.0 C / 3.0 s. Simplifying the equation, we find that the current in the wire is 2.0 A. This means that for every second, a charge of 2.0 coulombs passes through the wire. Therefore, the main answer is that the current in the wire is 2.0 A.
The current in the wire is determined by dividing the charge passing through it by the time period. In this case, the current is calculated to be 2.0 A.
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why does somthing fall faster if it is heavier
Answers
why does something fall faster if it is heavier?
➪ First of all I would like to inform you that this statement is not true. The acceleration does not depend on the mass of the object. Heavier things have a greater gravitational force AND heavier things have a lower acceleration. It turns out that these two effects exactly cancel to make falling objects have the same acceleration regardless of mass.
Lets see
According to Newton's second law
\(\\ \rm\rightarrowtail F=ma\)
F denotes to forcem denotes to massa denotes to acceleration\(\\ \rm\rightarrowtail F\propto m\)
If mass is more force of gravity is more.\(\\ \rm\rightarrowtail m\propto \dfrac{1}{a}\)
If mass is more acceleration is less or air resistance is less .So heavier objects fall faster than lighter ones .
What is the basis for the sounds referred to as korotkoff sounds?.
Answers
Answer:Korotkoff Sounds. -tapping sounds created by turbulent blood flow in arm. -pressure is slowly being released from cuff, so systolic pressure is above that of the cuff, but diastolic is still below, so the artery opens in systole and collapses in diastole.
Explanation:
how much does it cost to run a 60-watt led light bulb for 24 hours
Answers
It would cost approximately 19 cents to run a 60-watt LED light bulb for 24 hours in the US.
The cost to run a 60-watt LED light bulb for 24 hours depends on the cost of electricity in your area. On average, the cost of electricity in the US is about 13.31 cents per kilowatt-hour. To calculate the cost, you need to first convert the wattage to kilowatts by dividing 60 by 1000, which is 0.06 kW. Next, multiply the kilowatt-hours (0.06) by the number of hours the bulb will be on (24), which equals 1.44 kWh. Finally, multiply the kilowatt-hours (1.44) by the cost of electricity (13.31 cents), which equals approximately 19 cents. Therefore, it would cost approximately 19 cents to run a 60-watt LED light bulb for 24 hours in the US.
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In 1838 botanist Matthias Schleiden determined that all plants are composed of cells. In 1839 anatomist Theodor Schwann proposed that all animals are composed of cells. In 1855 biologists Rudolph Virchow added to Schleiden & Schwann’s observations and proposed that all living things are composed of cells. Which statement is also part of Virchow’s theory? Group of answer choices all cells have a cell wall all cells can develop into any other type of cell all cells come from pre-existing cells all cells are capable of photosynthesis
Answers
Answer:
All cells come from pre-existing cells
Explanation:
Rudolf Virchow, a German Physician, stated the theory that all cells arise from pre-existing cells. He used this theory to explain disease pathology at the cellular level. His work helped clarify that diseases occur not at tissue or organ level, but at the cellular level. This resulted in more accurate diagnosis of diseases by other scientists.
His legacies includes being among the first to use animals in his research, first to name numerous diseases and also the creation of many medical terms still in use today.