Answer
35 min
Work Step by Step
$N=N_{0}e^{0.020t}$
when population is doubled, $N=2N_{0}$
Thus, $2N_{0}=N_{0}e^{0.020t}$
or, $2=e^{0.020t}$
or, $ln2=0.020t$
or, $t=\frac{ln2}{0.020}=35min$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Appendix I - E Logarithms - Natural Logarithms - Appendix I-D Exercises on Trigonometry - Page A-6: 7
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