A box of mass 5.0 kg is initially at rest. A 500 N force causes it to move horizontally through a distance of 12.00 m. How much work would there be?

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Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

If a simple machine reduces the strength of a force, what must be increased?