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Math Help - Physics Calculator

  1. #1
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    Physics Calculator

    Need help putting this in my scientific calculator (6.67x10-11)(20)(20)/(0.5)2

    what is the answer
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  2. #2
    MHF Contributor MarkFL's Avatar
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    Re: Physics Calculator

    You could simplify it as:

    \frac{6.67\times10^{-11}\cdot20\cdot20}{\left(\frac{1}{2} \right)^2}=\frac{400}{\frac{1}{4}}\left(6.67\times  10^{-11} \right)=

    \left(1.6\times10^3 \right)\left(6.67\times10^{-11} \right)=10.672\times10^{-8}=1.0672\times10^{-7}
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