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## Homework Statement

A liquid with a specific gravity of 0.9 is stored in a pressurized, closed storage tank to a height of 7 m. The pressure in the tank above the liquid is 8700 Pa. What is the intial velocity of the fluid when a 5 cm valve is opened at a point 0.5 m from the bottom of the tank? Assume the gage pressure at the opening is 0 Pa (Atmospheric pressure)

## Homework Equations

[tex]\rho_1{A_1}{v_1}=\rho_2{A_2}{v_2}[\tex] ?

or

[tex]{A_1}{v_1}={A_2}{v_2}[\tex] ?

and

[tex]{P_1}+{.5{\rho}{v_1}^2}+{{\rho}gh_1}={P_2}+{.5{\rho}{v_2}^2}+{{/rho}gh_2}[\tex]

## The Attempt at a Solution

I tried simply rearanging the 3rd equation and solving for v2 but i don't no [tex]\rho[\tex] so that was just a mess that didnt work...I can't figure out where I'm supposed to use the diameter of the hole...I've been working on this for hours and everytime i think I've frigured it out i second guess myself and think i did something I couln't. Could someone please poin me in the right direction...to top it all off i think i did that latex thing wrong