Based on wind resistance?
Answer: 480 kJ
Explanation: Energy = power · time
E = Pt = 4000 W · 120 s = 480 000 J
This is a concave mirror you're talking about, so all of the points are going to converge to a single focal point. Therefore the answer would be that it bounces back toward a single spot
Correct answer is letter B. sandstone
Answer:
which principle prevents a brach from abusing its power
Explanation:
