A truck engine can has a pushing force of 564000 N in order to keep a constant velocity of 44m/s. What is the power? (work done = force * displacement, power = work / time , displacement/ time = velocity)

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9