I dont speacka you languadge
The advantages of the hydropower are:
- It is renewable
- It is a clean source of energy
- Matches current demand
- It is stable and reliable
- Requires low operating cost
The disadvantages of the hydropower are:
- Causes environmental damage
- Cost of building is expensive
- May cause droughts
- May cause floods in lower areas
- Shortage of water supply
The hydroelectric power has its prons and cons. It is very expansive for building, and it causes environmental damage in the river systems, but it also causes hazards like droughts and floods at certain areas. On the other side, once established it is very cheap, and it gets the job done when it comes to electricity. It is also an energy that is not polluting, and it is sustainable, reliable, and renewable.
If an athlete has X joules of mechanical energy at the top of the hill, he will have the same X amount of energy at the bottom of the hill.
<h3>What is mechanical energy?</h3>
Mechanical energy is the addition of kinetic and potential energy. It can be either kinetic or potential energy.
It is the energy possessed by the position or the motion of the body.
It is the energy present to perform any work.
So, the athlete will have X joule of energy at the top and bottom of the hill.
Thus, the correct option is a, X joules.
Learn more about mechanical energy
brainly.com/question/20030300
They will fall at different rates because of air resistance
