Answer:
Star formation occurs most rapidly in the spiral arms, where the density of interstellar matter is highest.
Work = force × distance
= 35 N × 200 m
= 7000 J
E = mc^2
m = e/c^2
m = 2.7*10^16/(300000^2)
m = 300000
Answer:
Option (C)
Explanation:
The nuclear energy is defined as a type of energy which liberates either by the process of nuclear fusion or nuclear fission and is mainly used to generate electricity. This energy is stored in the core of an atom (or nucleus).
It is highly effective, cost-effective and there is no emission of greenhouse gases.
But it also has some disadvantages, of which one is that it produces radioactive waste materials, which are difficult to dispose these substances and is also a very expensive method. These materials emit radiations that are harmful to the organisms. So, it is very challenging to dispose these radioactive waste materials.
Thus, the correct answer is option (C).
To be referenced, it would be true
