Acar walks 3 m north and then 15 m south. what distance did the cat walk

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?

Aseismic wave is energy released as the result of rock movement along a fault. t or f ?