Its thin glass fibers that let light be transmitted through them
Explanation:
Given data
Velocity v=3 m/s
Water volume flow rate V=590 m³/s
Water elevation z=90 m
Water density p=1000 kg/m³
First we need to determine the energy per unit mass
So

Now the power generation potential is:

Answer:
option D
Explanation:
given,
angular speed of the fan = 120 rev/min
time = 20 sec
After 40 s fan comes to rest
ration angular acceleration of the first 20 s to last 40 s.
angular acceleration for first 20 s



for last 40 s



now, ratio


hence, the correct answer is option D
<span>Energy from the sun reaches Earth mostly by Radiation </span>