What is the momentum of a 12 kg ball with velocity of 24 m/s?

The speed of light can be used to measure the

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Acar travels 40m in 8 seconds find the car speed