Look at the diagram below. What is the size of the overall force on the boat? Enter your answer as a number
N
30 N
45 N

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart