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physics

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I need help! i don't know how to do this problem.

average atmospheric pressure at earth's surface is 1.01 x 10^5 N/m^2. Earth's radius is 6.37 x 10^6m. Show that the total weight of earth's atmosphere is about 5.15 x 10^19 N.

  • physics - ,

    P=W/A= W/4πr²,
    W=4πr²•P=
    =4•3.14•(6.37•10⁶)²•1.01•10⁵=5.15•10¹⁹ N

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