Thank you drwls.

I was not reading my own question clearly. I am trying to make the equation true for an object that is 100 pounds at sea level. Find the vlaue of C that makes the equation true. wouldn't C, being the contant, be where I put my 100 pounds?

For the equation I gave you in the previous answer,

Weight(at r=R) = 100*[(3963)/R]^2,
the constant C in an equation
Weight (at r=R) = C/R^2
would be
C = 100*3963^2 = 1.571*10^9

You would need a different constant for objects of different mass, so that would equation would not be true for all objects. R must be expressed in miles, also, and measured from the center of the earth, not sea level.

That makes sense. So not so much the wieghtof the object but how high above or below sea level the object was. A mile is still 5280 I am guessing so if I have an object in Death Valley is my given example, (its not a even numbered question so I don't have to do it but I want to understand this) at 282 feet beleow sea level I need to plug this number in for r as a fraction of a mile?

At the -282 feet (-.053 miles) altitude at Badwater in Death Valley, the distance from the center of the Earth is

R = 3963 - .053 = 3962.947 miles, so that is what you would use in the C/R^2 equation.

The effect of the lower elevation on the weight will be very small and comparable to other corrections that should be made due to the nonspherical shape of the earth, latitude (which affects centrifugal force of Earth's rotation), and the effect of nearby mountains like Telescope Peak.

It seems to me you are beating this subject to death. I hope my explanations have been clear.

It seems that you're referring to an equation involving an object's weight and a constant value, C. To determine the value of C that would make the equation true for an object weighing 100 pounds at sea level, we need more information about the specific equation you're referencing.

However, typically in physics, the equation for weight is expressed as:

Weight = mass × acceleration due to gravity

Since the object's weight is given as 100 pounds, we need to convert this to mass, which is measured in kilograms. Then, if we know the value of the acceleration due to gravity, we can calculate the value of C.

To convert pounds to kilograms, we use the conversion factor: 1 pound = 0.453592 kilograms.

The formula to convert weight (W) to mass (m) is:

m = W / g

Where g is the acceleration due to gravity. Assuming you're referring to the Earth's gravity, which is approximately 9.8 m/s^2, we can substitute these values into the equation:

m = 100 pounds × 0.453592 kilograms per pound

Next, we can use the calculated mass and the known value of the acceleration due to gravity to find C in the equation you mentioned. However, you'll need to provide the complete equation for further assistance.