How much static force is required to move a couch across a carpet floor if the ratio of friction to the normal force is .78 and the normal force of the couch is 200 N?

True or false: the revolution of the earth creates day and night as it rotates around the sun

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s