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Physics
Under what condition (if any) does a moving body experience no energy even though there
is a net force acting on it?
1 answer
what do you mean by "experience no energy"?
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Which of the following four bodies has the greatest kinetic energy?
a. A body of mass 1 kg moving with speed 1000 m/s. b. A body
Top answer:
multiply mass*velocity*velocity. Which is greater. Hint,speed squared is a big factor.
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1. A body moving through the air at a speed v, experience a retarding force f, given by f= KAPv-square where A is the surface
Top answer:
To find the value of × in the expression for the retarding force f= KAPv^2, we need more
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Which of the following is not an example of potential energy?
a.)The energy stored in a pile driver b.)The energy stored in a
Top answer:
c. is not PE.
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At what height above the ground must a body of mass 8kg be situated in order to have potential energy equal to kinetic energy
Top answer:
KE = 1/2 mv^2 PE = mgh so you want 8*9.81 * h = 1/2 * 12 * 10^2 now just crank it out
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A body of Mass 10 kg moving at 6 m/s collides with another body of mass 20 kg moving at 4 m/s in the same direction. The 20 kg
Top answer:
10 * 6 + 20*4 = 10 * x + 20 * 5
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A ball of mass 8kg at what hight above the ground must a body of mass 10kg be pesuated in other to have potential energy equal
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A ball of mass 8kg at what hight above the ground must a body of mass 10kg be pesuated in other to
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At what height above the ground must a body of mass 10kg be situated in order to have a potential energy equal in value to the
Top answer:
Can it, @Josh. PE = mgh KE = 1/2 mv^2 so, just solve 10*9.81*h = 1/2 * 10 * 10^2 and that's
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At what height above the ground must a body of mass 10kg be situated inorder to have potential energy equal in value to the
Top answer:
you want h such that (assuming g=10 m/s^2) mgh = 1.2 mv^2 (10)(10)(h) = (1/2)(10)(10^2) h = 5m
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at what height above the ground must a body of mass 10kg be situated in order to have potential energy equal in value to the
Top answer:
PE = mgh KE = 1/2 mv^2 so, set them equal and solve for h
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At what height above the ground must a body of mass 10kg be situated in order to have potential energy equal in value to the
Top answer:
(1/2) m v^2 = m g h h = v^2/(2g)
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