A frictionless cart attached to a spring vibrates with amplitude A. Part A Determine what fraction of the total energy (Etot) of the cart-spring system is elastic potential energy (Us) and what fraction is kinetic energy (K) when the cart is at position x=A/2. Express your answers using two significant figures separated by a comma.

Why are graphs useful when interpreting data

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?