Which equation best describes the law of conservation of momentum? O pi= Pt
Op;>P
Op; Op; + Pr= 0

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

Contains chemical energy. a. heat b. light c. natural gas

Carmen is load furniture and boxes onto a moving truck. she picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. which term best describes the type of force carmen uses? a. contact b. friction c. gravity d. noncontact