The deuterium nucleus starts out with a kinetic energy of 1.71e-13 joules, and the proton starts out with a kinetic energy of 3.42e-13 joules. The radius of a proton is 0.9e-15 m; assume that if the particles touch, the distance between their centers will be twice that. What will be the total kinetic energy of both particles an instant before they touch? ______________Joules What is the kinetic energy of the reaction products (helium nucleus plus photon)? ______________joules C: Gain of kinetic energy: What was the gain of kinetic energy in this reaction? (The products have more kinetic energy than the original particles did when they were far apart. How much more?) ______________Joules D: Fusion as energy source Kinetic energy can be used to drive motors and do other useful things. If a mole of hydrogen and a mole of deuteriu m underwent this fusion reaction, how much kinetic energy would be generated? _________joules