Answer: Heat is removed from the room at 12W
Explanation:
Energy (heat) is generated by the the rotor at a rate
∆Q/t = 438W
Work is done (heat removal) by the refrigerator at a rate
∆W/t = 450W
Net rate of heat removed =
∆Q/t - ∆W/t
= (438 - 450)W
= -12W
<em>Time = (the set distance) / (the object's traveling speed)</em>
Are you talking about a constructive force / constructive wave? Sorry I think that's what you are asking
Even though the Earth has less mass than the Sun, the moon orbits Earth because it’s much nearer to it.
<u>Explanation
:</u>
The fact is that the Moon orbits both the Sun and the Earth. On looking at the orbit of the Moon, it orbits in the same manner the way Earth does, but in a Spiro graph pattern along with orbiting the Earth with a small wobble to it.
Since the Sun has greater distance from the Moon as compared to the Earth (around 400 times), the gravity of Earth draws better impact on the Moon.
The escape velocity of the Moon is about 1.2 km/s at the distance from the Earth which is not sufficient to get ripped away from the Earth.
Hence, the moon orbits the Earth along with orbiting the Sun together with the Earth, but seems as if it only orbits the Moon.
