A red pool ball is rolling directly east before it collides with the white cue ball moving directly north. Due to conservation of
momentum the total momentum of both objects after the
collision would be in which direction?

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in

A1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?

Many young black ambitious musicians migrated to harlem around 1940, where they found an alternative music scene in the after-hours that allowed them to play what they wanted to play, experiment with new harmonic concepts, and work on extending the technical mastery of their instruments.