If a man travels from 0m to 5m then back to -3m, all in four seconds, what is the total distance the man travels during the four seconds

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

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