Can't seen to get the right solution-(adsbygoogle = window.adsbygoogle || []).push({});

A sluice gate dams water up 5m. A 1-cm dia hole inthe bottom of the gate allows liquid water at 20C to come out. Neglest any changen in internal energy. Find exit velocity and mass flow rate.

governing eqn- hi=he+1/2v^2

I found

P1=(1000)(9.81)(5)=49050Pa

=49050+101.325

=150.375kPa

P2=101.325

he=175.5 (at 20C, 101.375kPa)

hi=217.8 (at 20C, 150.375kPa)

when I sub and solve for V i get 9.18 m/s

It should be 9.9 m/s

Where am I going wrong?

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Can't seen to get the right solution-A sluice gate dams water up

**Physics Forums | Science Articles, Homework Help, Discussion**