Respuesta :

Answer:

1.17 x 10¹¹ J

Explanation:

250 MW = 250 x 10⁶ W

7.8 min = 468 s

P = W/t

W = Pt

   = 250 x 10⁶ x 468

   = 117000 x 10⁶

   = 1.17 x 10¹¹ J