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A wide tank is filled with water and ker...

A wide tank is filled with water and kerosene. The tank has a small hole at the bottom. The height of water layer is 40 cm and that of the kerosene layer is 30 cm. Find the velocity of the water flow, neglecting the viscosity in question. Given relative density of kerosene is 0.80.

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The correct Answer is:
` 3.54 m//s`
`h_1 rho_1g + h_2rho_2 g= (1//2) rho_2v^(2) , v= sqrt(2[h_1+h_1rho_1//rho_2)) g= sqrt( 2[0.4+0.3(8000//1000) 9.8) =3.54 m//s`
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