The 3rd option, it's a reflection
I’m eye billing it I would say $300 bekuz the rest are to low loll
Answer: $744.72
Step-by-step explanation:
so 136+288+272=696
696+48.72=$744.72
i suppose it would be this answer
#1. 720 Nm
Work = force x distance
Work = 80N x 9m = 720 Nm
#2. 90J
Assume no energy lost in the process,
<span>Kinectic energy=(80N - 70N) x 9m
= 90J
#3. 630J
Heat energy = work - kinetic energy
Heat energy = 720J - 90J
= 630J</span>