Okay, passive solar is used to gain heat energy, not electricity, so that is one. All the others can be used to produce electricity, so I'm not sure what the second answer is.
The Damage Fossil Fuels<span> can do. However they are obtained, whether through traditional or new methods such as fracking, </span>burning fossil fuels<span> such as oil, coal and gas results in the production of carbon dioxide and other greenhouse gases, which cause global warming.</span>
Heat is transferred when a substance changes phases. Substances can be made to change phases by fluctuating the temperature, the pressure, or both. I hope I could help!
Answer:
The speed of electron is 
Explanation:
Given that,
Separation of the plate = 1.20 cm
Suppose the field is
.
If the electron is accelerated from rest near the negative plate and passes through a tiny hole in the positive plate.
What the speed does it leave the hole?
We need to calculate the acceleration
Using formula of electric force



We need to calculate the speed of electron
Using equation of motion


Put the value of acceleration in the formula

Put the value into the formula



Hence, The speed of electron is 