Bantu nomor 10 yah, C es=2100J/kg°C. C air=4200J/kg°C

pakai azaz black

Q lepas = Q terima
m.c.(t-t1) = m.c.(t2-t)
500.2100 (t - 0) = 250.4200 (50 - t )
1050000.t = 1050000 - 250 t
1050000t+250t = 1050000
t = 1,0002