d. natural gas is the answer
Buy a fan or heater, get a blanket, take a shower, go outside, go by the fireplace
Answer: its mechanical energy
Explanation:
Given:
F = 39 N, the force applied
t = 2 s, the time interval in which the force is applied.
By definition, the impulse is

Answer: 78 N-s
Все написано в скобках правильно