Question 668717
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Double check the number "13" in your post.


Usually (as a rule) this number for the Earth conditions is EITHER 16 (when the height is measured in feet)  
OR  5  (when the height is measured in meters).


It is for the first time I see the number "13" in such problems.


But if they are talking about a projectile launched at the other planet surface . . . 


then everything may happen . . . 
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