What measures the mount of displacement in a longitudinal esbelta?

A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply