Check Google it might have the answer sorry I couldn't be much help
The correct answer is a I hope that helped enjoy the rest of your weekend
Answer:
electromagnetic waves only
Explanation:
I just took the test, Hope it helps!
The motor does 20 J of work on the block, it means that the total mechanical energy of the block has increased by 20 J. But the increase in total mechanical energy is equal to the sum of the increases in potential energy and kinetic energy:

So, if the gravitational potential energy has increased by 15 J, the kinetic energy has increased by
Answer
Thanks
Explanation