A) \[~3.80\times {{10}^{8}}m\]
B) \[~3.37\times {{10}^{6}}m\]
C) \[~7.60\times {{10}^{4}}\text{ }m\]
D) \[~1.90\times {{10}^{2}}\text{ }m\]
Correct Answer: A
Solution :
\[U=\frac{GMm}{r}\] \[\Rightarrow \] \[7.79\times {{10}^{28}}\] \[=\frac{6.67\times {{10}^{-11}}\times 7.4\times {{10}^{22}}\times 6\times {{10}^{24}}}{r}\] \[\Rightarrow \] \[r=3.8\times {{10}^{8}}\,m\]You need to login to perform this action.
You will be redirected in
3 sec