A 9-kg sled sliding freely on an icy surface experiences a 3-N frictional force exerted by the ice and an air-resistive force of 0.6 N. a. What is the net force acting on the sled? b. What is the acceleration of
the sled?

The momentum of an isolated system is conserved a) only in inelastic collisions. b) only in elastic collisions. c) in both elastic and inelastic collisions

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

In a series circuit the __ is the same at every point