Chapter 20, Problem 44R

To determine

To Convert: 75 kilograms into joules.

Answer to Problem 44R

$6.75\times {10}^{18}$ joules.

Explanation of Solution

Given info:

Mass = 75 kilograms.

Formula used:

Mass-energy equivalence:

$E=m{c}^2$

Where, c is speed of light.

Calculation:

Substituting the given values,

$\begin{array}{c}E=75\times {\left(3\times {10}^8\right)}^2\\ =6.75\times {10}^{18}J\end{array}$

Conclusion:

The value of 75 kilogram in joule is $6.75\times {10}^{18}$ joules.