The natural process is called greenhouse effect. This is when the Sun's light enters the Earth, and converts to heat. Light passes through the Earth's atmosphere much easier compared to heat. Because of this, heat is trapped on Earth because it cannot exit the atmosphere as easily as light does.
As we know that P=IV so P = (0.5A)(4.5V)
P= 2.25 watt
This one is correct
Jamie is correct, because the mechanical energy is converting to electrical energy.
Answer:
They are both mechanical waves