The following question is lowing question, include units. optional! to receive full credit for the fol you muust show your work and your final answer must 5. (10 points (bonus)) the source of the sun's energy is a sequence of nuclear re- occur in its core. the first of these reactions involves the collision actions that or to protons, which fase together to form a single mucles that weighs les than the e two separate protons thus releasing energy. for this "nuclear fusion" process to occur, the two protons must first approach until their surfaces are essentially touching. (a) (6 points) assume both protons are moving with the same speod and they collide head-on. the radius of a proton is approximately 1.2 x io-s m, use thi is to estimate the minimum speed that will allow fusion to occur. (b) (4 points) you may recall from thermodynamics that the average trans- energy of a particle in a gas at temperature t is jkbt lational kinetic where kp is the boltzmann constant 1.4 x 10-23 j/k. what is the mini- mum temperature of a star where the proton-proton nuclear fusion above is occurring?