A motor does 20 joules of work on a block, accelerating the block from rest vertically upward. Neglecting friction, if the gravitational potential energy of the block increases by 15 joules, how much kinetic energy does the block have?

Sarah and michelle work at a tech company that designs exercise apps. sarah tells michelle she has heard that james, their supervisor, interviewed with a competitor and may be leaving the company, which would open up a management position. what kind of power is sarah exerting?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Explain earth's motion, using the terms "precession" and "rotation" in your answer.