A current of 12 A flows for 20 minutes into an electric cooker. How much charge has the cooker used?

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

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

The energy released by a nuclear fusion reaction is produced when