College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Test - Page 80: 13



Work Step by Step

We solve for $c$: $E=mc^{2}$ $\frac{E}{m}=c^{2}$ $c=\sqrt{\frac{E}{m}}$ We keep $c$ positive because it represents the speed of light (which is a non-negative constant).
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