A ball vertically drops from rest onto a flat surface a distance 3.0m below the ball. After bouncing once, it returns to its original height. You may assume that the time of the collision is small compared to the total time the ball is moving. What is the average acceleration of the ball given that the collision lasts 5ms? Please give your answer in }m/s^2
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Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

Ascientific blank must be testable and capable of being proven false?

The law of reflection states that the angle of reflection is equal to the angle of