If a proton and anti-proton come close to each other and annihilate, how much energy will be released ?

A proton and an antiproton come close to each other in vacuum such that the distance between them is 1.0 cm. Consider the potential energy to be zero at infinity. The velocity at this distance will be

A proton and an antiproton come close to each other in vacuum such that the distance between them is 10 cm. Consider the potential energy to be zero at infinity. The velocity at this distance will be

Two protons attract each other when

Nucleus of an atom consists of protons and neutrons closely packed into a small volume. Explain how energy is released in a fission process.

When and electron-positron pair annihilates, the energy released is about.

When and electron-positron pair annihilates, the energy released is about.

If two steams of proton move parallel to each other in the same direction, then they

If two steams of proton move parallel to each other in the same direction, then they