Question

СРОЧНО ДАЮ 40 БАЛЛОВ!!!!

Answer 1

Ответ:

1 Q = I²Rt = 20²*50*10 = 200 000

2 I = √(Q/Rt) = √(20 000/50*4) = 10

3 R = Q/I²t = 9 000/30²*10 = 1

4 t = Q/I²R = 250 000/50²*50 = 2