2014-01-13, 10:38 AM
Does the problem state the gravity at sea level is 9.83?
If so, use that to find r. Don't use the average earth radius.
Don't have paper or a calculator near me but it seems like the numbers would work. 9.83 means stronger gravity, so smaller radius than the given average.
Do the problem using that equation twice - once to find r_sea, and use that value for r in the equation you evaluated in the OP.
If so, use that to find r. Don't use the average earth radius.
Don't have paper or a calculator near me but it seems like the numbers would work. 9.83 means stronger gravity, so smaller radius than the given average.
Do the problem using that equation twice - once to find r_sea, and use that value for r in the equation you evaluated in the OP.