bnatuin dunggg jawabnyaaaa

Q = mcΛT
8050 = 0,25 kg x c x (100-30)
8050 = 0,25 x c x 70
8050/70 = 0,25 x c
115 = 0,25 x c
115 x 4 = c
460 = c ( Besi )

C=Q/m.t
=8050/0,25.70
=8050/17,5
=460j/kg
jawabannya D