Magnetism is caused by sound vibrations transverse waves photon particles spinning electrons

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot