Chapter 7.2, Problem 7.7YT

Interpretation Introduction

Interpretation:

The mass of coal would be required to produce the given amount of energy has to be calculated.

Concept Introduction:

Einstein’s mass energy relationship:

Einstein’s mass-energy relationship is given by,

$\begin{array}{l}\text{E}\text{=}\text{m}{\text{c}}^{\text{2}}\\ \text{where,}\\ \text{E}\text{-}\text{energy}\\ \text{m}\text{-}\text{mass}\text{and}\text{c}\text{-}\text{speed}\text{of}\text{light}\end{array}$