Check my work. i want to know if i did it correctly.

answer: 0.20

explanation: this can only be the answew because all the other measuremnets are not close

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

we need to know the time interval during which the force acts. impulse of force = momentum change

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table