Answer
$62nN$
Work Step by Step
We know that
$F=G\frac{m^2}{r^2}$
We plug in the known values to obtain:
$F=6.67\times 10^{-11}\times \frac{(6.7)^2}{(0.22)^2}$
$F=6.2\times 10^{-8}N$
$F=62\times 10^{-9}=62nN$
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 410: 16
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