Question 164386
The weight of an object follows this equation:  {{{w=Cr^-2}}} where C is the constant, r is the distance from the center of the earth (3963 miles).  Using the value of C = 1570536900, determine how much an object would weigh in Death Valley (282 feet below sea level).
:
since we have the radius in miles we have to convert 282 ft to mile:

{{{282/5280}}} = .05341 mi below sea level:

{{{w=Cr^-2}}} 
the reciprocal of r will take care of the neg exponent
{{{w=C/r^2}}}
Substitute for C and r, subtract the dist below sealevel
{{{w=1570536900/((3963-.05341)^2)}}}
{{{w=1570536900/((3962.94659)^2)}}}
{{{w=1570536900/15704940.21}}}
w = 100.00273 lb; Means 100 lb weight in death valley is slightly heavier
:
A lot numbers to crunch here. Check my math on your calc.