Question

What is the energy equivalent of an object with a mass of 25 kg?

55% 10
75% 102
38% 1015
225 + 10

Answer 1

`2.25\cdot 10^(18) J`

Step-by-step explanation:

The energy equivalent of the mass of an object can be calculated by using the Einstein's equation:

`E=mc^2`

where

E is the energy

m is the rest mass of the object

`c=3\cdot 10^8 m/s` is the speed of light

For this object

m = 25 kg

So its equivalent energy is:

`E=(25)(3\cdot 10^8)^2=2.25\cdot 10^(18) J`