it is no longer and electromagnetic wave.
Answer:
artificial: light bulb, flash light, computer screens. natural: sun, stars, fires.
Yes, but not by much, unless the asteroid has a very large mass.
Momentum is proportional to mass times velocity
It is C) doing work because he is moving the bale of cotton.It only makes sense he is still doing work the pulley is just making it easier.
The magnitude is equal for both the ball and the wall because newtons third law of motion states that for every force applied, there is an equal force in the opposite direction.