Physics

Problem

A horizontal circular safety valve is installed 12 m below the water surface in a reservoir. The valve must be designed so that the water force on it does not exceed

4.0\times10^{4}\,\text{N}

. What is the maximum allowable diameter of the valve? Assume

\rho_{\text{water}} = 1.0\times10^{3}\,\text{kg}\,\text{m}^{-3}

and

g = 9.8\,\text{m}\,\text{s}^{-2}

. a)

0.48\;\text{m}

0.92\;\text{m}

0.66\;\text{m}

0.33\;\text{m}

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