A ball of mass 0.12 kg is hit by a tennis player. The velocity of the ball changes from 0 m / s to 5.0 m / s in 0.60 s. What is the average resultant force acting on the ball while it is being hit?

=force × distance a. work b. velocity c. pressure d. momentum

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

The movement of electrons between atoms is called an