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Pressure

AP Physics 1· difficulty 4/5

h P

A tank holds water (density ρ\rho) open to atmosphere P0P_0. At depth hh, the absolute pressure is P0+ρghP_0 + \rho g h. If ρ=1000\rho = 1000 kg/m3^3, h=5.0h = 5.0 m, and P0=1.0×105P_0 = 1.0\times10^5 Pa, what is PP in Pa?

  • A

    1.05×1051.05\times10^5

  • B

    5.0×1045.0\times10^4

  • C

    1.49×1051.49\times10^5

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  • D

    2.0×1052.0\times10^5

Explanation

P=1.0×105+(1000)(9.8)(5.0)=1.49×105P = 1.0\times10^5 + (1000)(9.8)(5.0) = 1.49\times10^5 Pa.

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