Question: If an electric train is moving north at 100mph and a wind is blowing to the west at 10mph, which way does the smoke blow?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?