Answer:
Velocity = 94.85m/s
Explanation:
<u>Given the following data ;</u>
Height = 1200m
Vertical distance = 1050m
To find the time, we would use the second equation of motion;

Substituting into the equation, we have;

t = 11.07 secs
To find the velocity;
Mathematically, velocity is given by the equation;

Substituting into the above equation;

Velocity = 94.85m/s
Therefore, the velocity of the water above 1050 m over the sea level is 94.85m/s.
Answer:
12J
Explanation:
Right before it hits the ground, the initial potential energy and the final kinetic energy will equal each other due to conservation of energy.
When the surface of a hard disk is scratched an some or all of the files are destroyed, it is called a head crash. It is a result of a disk in contact with the rotating platter causing it to permanently damage a very sensitive part of the disk.<span />
Answer:
Explained below:
Explanation:
The major limitation in the use of Photovoltaic cells to generate electricity is its unpredictability about the climate that whether it will be a shining day or a cloudy day and it does not work at night also because of no presence of sunlight as it totally depends on it. It can be used as an alternative but cannot be used as chief source of electricity.