Jawabanmu

2014-05-14T14:13:51+07:00
R = 9 ohm
I = 16 A
t = 45 menit = 2700 sekon
W = I R I T
= 16 x 9 x 16 x 2700
= 6220800 Joule = 1492992 kalori = 6220,8 kWh
1 joule = 0,24 kalori

soalnya sama seperti di SMP ngerjain ginian