A54 kg mass is separated from a 66 kg mass by 9 meters. what is the magnitude of the gravitational force in newtons on the 54 kg mass?

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?