It takes less force to move an object uphill via an inclined plane. The trade-off is that the object must be moved over distance than if it were moved straight up to the higher elevation.
A. Shorter
B. Greater
C. The Same
D. None Of The Above

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.