Why does it require creativity to devise a new atomic model?

the atom cannot be seen directly, so scientist must use creativity to interpret information about its structure.

it is impossible to test a theory about the atom.

scientists prefer whichever atomic model is the most creative.

scientists create data to avoid performing experiments.

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