1. the factors that impact your energy bill include usage,
weather, household changes, and a

When does your body conduct current more readily?

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up