Ayah membeli 2 lampu masing-masing 15 watt digunakan 40 menit dalam sehari hitung usahanya
72.000 J
Penjelasan:
P = 2 x 15 Watt = 30 watt
t = 40 menit
= 40 x 60 detik
= 2.400 detik
W = P x t
= 30 x 2.400
= 72.000 Joule
[answer.2.content]72.000 J
Penjelasan:
P = 2 x 15 Watt = 30 watt
t = 40 menit
= 40 x 60 detik
= 2.400 detik
W = P x t
= 30 x 2.400
= 72.000 Joule
[answer.2.content]