Answer:wdym insulation if u mean like covering than the ppls heads
Explanation:
B) millimeter, centimeter, meter, kilometer
Answer:
Driving force increases, friction forces increase, the driving force is bigger than friction 12.
Explanation:
Answer:
9 joules of heat energy was produced
Explanation: there is no acceleration therefore its not a kinetic energy
Energy= force × distance
= 3×3
=9
The train would need the greatest amount of force due to weight! If you think of it, a baseball won't need much force to stop it, but if you have a heavy train, it will need excessive force to stop the train. The answer would be #3
I hope this answer helps!
Sorry if it doesn't make sense, as I don't know that much about physics! I am just thinking of what makes sense.
