Answer:
Circuit 1 and Circuit 3
Explanation:
If there is 1 Circuit and it runs out of energy, there's another one to produce the power.
The net force on the sled is 6.6 N pointing backwards, opposite to the direction it's sliding. That's why it's slowing down, and will eventually stop.
The answer is A) Electricity in homes spread extremely .....
An arrow pointing from the bottom of the ramp to the top, I assume it would be friction.
