Answer: P= W/t so P=50/20 =2.5 W
Answer:
Yes.
Explanation:
Rocket can propel itself in vacuum because the thrust is provided as a reaction to the the gases coming out of rocket, which have nothing to do with vacuum.
Answer: I believe this may be Infinity and beyond...i hope this helps you and i apologize if i am wrong.
<u>Answer:</u>
energy only
<u>Explanation:</u>
Water waves transfer energy via oscillations of the water molecules, but the the water molecules themselves do not move along the wave.
This is why when the boy jumps into the water, his kinetic energy is transferred by the water molecules across the pool, but neither the boy nor the water particles move along with the wave.
