Kalor 460 j/kg°c dpanaskan Dr suhu 10-50°c. Diperlukan 69.000 joule. Brpa besar massa balok besi

C = 460 J/kg C
t1 = 10 C
t2 = 50 C
Q = 69000 J
m?

penyelesaian:
m = Q / C × (t2 - t1)

m = 69000 / 460 × (50 - 10)

m = 150 / 40

m = 3,75 kg