Question

Which equation explains where the energy that is released from stars comes from?

A. p = mv
B. F = ma
C. PE = mgh
D. E = mc2
help

Answer 1

Even though this is the wrong subject (it belongs in phycis section, not chemistry), the answer would be E=mc^2. This equation gives the amount of nuclear energy contained in a certain mass of matter, and stars use nuclear reactions to release energy.

Answer 2

D.
`E=m\ c^2`

Step-by-step explanation:

Star is huge glowing hot gas ball which mainly consists of hydrogen and helium.

The energy source of the stars are the nuclear fission and the fusion reaction taking place within the stars.

The energy of such reactions is calculated by using the Einstein's equation as:-

`Energy=m* c^2`

Thus, the correct answer is:- D.
`E=m\ c^2`