The swinging pendulum has 10 joules of potential energy at its maximum height at points (1) and (5). if the mass of the pendulum is 10kg, how fast is the pendulum moving at point (3)?

Distinguish between a transverse wave and a longitudinal wave.

What object a collides with object b and bounces back its final momentum is?

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.