Question

Calculate the energy that 1.5 kg of mass contains

Answer 1

Answer:

$4.5(10)^8$ joules

Explanation:

Mass–energy equivalence is the principle that says that anything that has mass has an equivalent amount of energy. Converse is also true.

The relation between energy and mass is given by $E=mc^2$

Here, E denotes energy, m denotes mass and c denotes speed of light

Mass $(m)=1.5\,\,kg$

Speed of light (c) = 3 × $10^8$ m/s

Therefore,

$E=1.5(3)(10)^8=4.5(10)^8$  joules.

The S.I. unit of energy is joules which is equal to $1\,\,kg\,\,m^2/s^2$