Alpha decay is a nuclear decay in which a helium nucleus is emitted. If the helium nucleus has a mass of 6.8*10^-27 kg and is given 5.8 MeV of kinetic energy what is its velocity

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

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

The ability to make things happen is also called a. heat b. force c. matter d. energy