Question

Which what velocity dies water flow out of an drifice in a tank with gauge pressure 4y
${10}^{9} n | m {}^{2} \: befor \: the \: flow \: starts \: density \: of \: water = 1000kg {}^{} | {m}^{2}$


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Answer 1

Answer:

Answer

ρ−ρ

0

=4×10

5

Pa,ρ=10

3

If the orifice is at a depth h from the water surface in a tank, the gauge pressure there is

ρ−ρ

0

=hρg ....(1)

By Toricelli's law of efflux, the velocity of efflux,

v=

2gh

...(2)

Substituting for h from Eq.(1),

v=

2g

ρg

rho−ρ

0

=

2

ρ

ρ−ρ

0

=

10

3

2(4×10

5

)

=20

2

=28.28m/s.