C- Incentives it’s like a reward ~!
Sound spreads through some kind of medium. Most of the time the medium is usually air. Sound can go through walls, like when you are playing really loud music and the neighbors tell you its to loud, you can't block it because it can travel through objects. Light does not need a medium to travel with. if you put a light in a room with no windows and no cracks, and you seal off the door the light can't escape that room, but if you did the same thing with sound it would travel trough the walls.
The energy stored in a capacitor is given by
where C is the capacitance and V the voltage applied.
In our problem,
, while the energy is
. We can then solve the formula to find V:
