Bodies a and b have equal mass. body b is initially at rest. body a collides with body b in a one–dimensional elastic collision. which statement is true? body a comes to rest. the momentum of the system is not conserved. the kinetic energy of the system is not conserved. the final velocity of body b is twice the initial velocity of  body a.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

Most short-period comets do not have randomly oriented orbits because