Answer
$F=0.021N$
Work Step by Step
According to Newton's law of universal gravitation
$F=G\frac{m_1m_2}{r^2}$
We plug in the known values to obtain:
$F=6.67\times 10^{-11}\times \frac{8.7\times 10^{24}(70)}{14\times 10^6}$
$F=0.021N$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 12 - Gravity - Problems and Conceptual Exercises - Page 409: 5
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