A 50 kg box is resting on a horizontal surface. Determine the coefficient of kinetic friction between the box and the horizontal surface.

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Determine the mechanical energy of this object: a 1-kg ball sits on a 10-meter high cliff. A. The ball isn't moving, so the mechanical energy is zero B. 10 J C. 98 J D.

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Surface waves move only in a back and forth motion. True False

A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s. What is the distance between the flying bullets?

A runner with a mass of 75kg runs 6m/s calculate the kinetic energy stored in the runner

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A certain wave has a wavelength of 35 meters and a frequency of 4.0hz. What is the speed of the wave

What is the Force in Newtons exerted by an object with a mass of 15 kg and an Acceleration of 12 m/s2?