Question

E=MC2 but when this formula act?​

Answer 1

Answer:

When you have mass of an object . eg.. star and you want to find out energy associated.

Step-by-step explanation:

Here E is energy

M is mass

C is speed of photons

Answer 2

Step-by-step explanation:

Energy =mass×speed of light ^2

it would be applicable when you reach a speed which is very near to the speed of light or equal to it