Afusion reaction releases energy because the binding energy of the resulting nucleus
true/false

True.

Explanation:

In fusion reactions the lighter elements combined to form the heavier ones. Binding energy is the energy which bounds these lighter nuclei together. During the fusion process the energy released because of the binding energy   which is the key feature of the nuclear matter.

ice to water 1 water to vapour 2 latent heat

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered