Answer:
Refraction are in parts or are reflected brokely, like light against aluminum. While a reflection, is exact. Like a mirror.
Answer:
Power, P = 600 watts
Explanation:
It is given that,
Mass of sprinter, m = 54 kg
Speed, v = 10 m/s
Time taken, t = 3 s
We need to find the average power generated. The work done divided by time taken is called power generated by the sprinter i.e.

Work done is equal to the change in kinetic energy of the sprinter.


P = 900 watts
So, the average power generated by the sprinter is 900 watts. Hence, this is the required solution.
You make them strong for example if you rub a balloon in your hair the longer you do it the longer it sticks because of static
Mostly when your around carpet or anything related to a carpet because when you do it long enough you will generate static electricity i hope this helps
<span>P= work/time and work is = to force x distance so its 500x4 =2000joules
and 2000/4 =500 watts</span>