Question 297226
Hint: At sea level, we're given that we are "3,963 miles from the center of the Earth". So this means that {{{r=3963}}}. Also, because we're are supposing that "an object is 100 pounds when it is at sea level", we can say that {{{w=100}}}. Plug these two values into {{{w=Cr^(-2)}}} to get {{{100=C(3963)^(-2)}}}.