Answer:
62.5 %
Explanation:
Let the initial intensity of unpolarized light is Io.
After first polariser the intensity of light becomes I'.
So, 
Now it passes through another polariser. The angle between the first polariser and the second polariser is given by Ф. The intensity is I''.
According to the law of Malus
Here, Ф = 30 degree
The percentage change in the intensity is given by
= 62.5 %
Answer:
it cools down the cancer cells
Explanation:
The cancer cells are rapidly reproducing and when you cool it down it slows down the mutation/ reproduction process.
Static electricity can be an alternating current.
Answer: 79.0 x 10²³ kg
Explanation:
The weight of any mass, is given by the value of the attractive force that the mass of the planet exerts on it, and is given by the Newton's Universal Law of Gravitation:
Fg = G m Mp / rp²
If Fg = 25.74 N, we can solve for Mp, as follows:
Mp = Fg . rp² / G m = 25.74 N. (7.3 10⁶)² m² / 6.67259. 10⁻¹¹ N.m²/ kg². 2.6 kg
Mp= 79.0 x 10²³ kg.
