(adsbygoogle = window.adsbygoogle || []).push({}); I used a Sodin Gravimeter to measure the relative gravity of a building with 14 floors.

I am wondering on how I use the relative gravity to find absolute gravity?

Information:

Height difference of each floor is 3.95m

Each floor weighs 10^{6}kg

For example, on the basement floor, the reading was 62.14mgal, the 1st floor was 61.90mgal, and 3rd floor was 60.18mgal (these converted would be 6.214*10^{-4}m/s^{2}, 6.190*10^{-4}m/s^{2}, 6.018*10^{-4}m/s^{2}, respectively . How do I use this information to find the absolute gravity?

Δg/g = (-2ΔR)/R

g = (G*m)/R^{2}

I found Δg by finding the difference of relative gravity. After that, I dont know what to do. The goal of this lab is to find the radius of earth, but I dont know how. Please help. Just tell me what to do, I dont need an answer. Thank you.

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# Homework Help: Finding Absolute Gravity

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