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Bernoullis' Principle

# Bernoullis' Principle - Name Continuity Principle and...

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Name_____________________________ Continuity Principle and Bernoulli’s Equation Practice 1) Water (ρ = 1000 kg/m 3 ) is flowing through a hose of cross sectional area 3.14 x 10 -4 m 2 at a velocity of 10 m/s. (a) Calculate the flow rate in kilograms per second of the flow. (b) If someone places their thumb over the end of the hose and reduces the area to 7.85 x 10 -5 m 2 , determine the velocity at which the water leaves the hose. 2) A nearsighted sheriff fires at a cattle rustler with his trusty six-shooter. Fortunately for the cattle rustler, the bullet misses him and penetrates the town’s water tower tank and causes a leak. If the top of the tank is open to the atmosphere, determine the speed at which the water leaves the hole when the water level is 0.50 meters above the hole.

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3) (a)If the wind blows at 30 m/s over the roof of your house, what is the pressure difference at the roof between the inside and outside air? (b) What net force does it produce on a flat roof having an area of 1100 m 2 ?
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