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Pressure

AP Physics 1· difficulty 2/5

A cylindrical tank (h=2.0 mh = 2.0~\text{m}) is filled with an oil of density 800 kg/m3800~\text{kg/m}^3. Using g≈10 m/s2g \approx 10~\text{m/s}^2, what is the <strong>gauge</strong> pressure at the bottom?

  • A

    1600 Pa1600~\text{Pa}

  • B

    4000 Pa4000~\text{Pa}

  • C

    16,000 Pa16{,}000~\text{Pa}

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  • D

    160,000 Pa160{,}000~\text{Pa}

Explanation

P=ρgh=(800)(10)(2.0)=16,000 PaP = \rho g h = (800)(10)(2.0) = 16{,}000~\text{Pa}.

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