Which alkaline earth metal is part of the reaction process of photosynthesis answers?

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n