Agirl sitting on a merry-go-round moves counterclockwise through an arc length of 3.15 m.
if the girl’s angular displacement is 1.82 rad, how far is she from the center of the merry-go-round?
answer in units of m

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.

What properties of a moving object are used in determining the object's energy of motion