Tolong jawab nomer 4 5 6 besok harus diujikan, terimakasih :)

4) 500 gr = 0,5kg
Delta T = 50-10 = 40 drjt C

Kalor = 7800/0,5x40 = 7800/20 = 390 j/kg drjtC
5) b ) K dan M
6) Ep = mgh = 2x5x10 = 100 j