Water flowing out of a -diameter faucet fills a bottle in . At what distance below the faucet has the water stream narrowed to diameter?
The distance below stream the faucet water is
Diameter of the faucet 1 is
Radius of the faucet is
Water flow at the speed of
Acceleration due to gravity is
Diameter of the faucet when it is narrowed
Radius of the faucet
Water flow after the faucet is narrowed
From the equation, continuity is
Speed of the water in the narrowed faucet is
The pressure difference is the same in both of the faucets. Therefore, from Bernoulli's equation
A syringe has an inner diameter of , a needle inner diameter of 0.25mm, and a plunger pad diameter (where you place your finger) of . A nurse uses the syringe to inject medicine into a patient whose blood pressure is .
A. What is the minimum force the nurse needs to apply to the syringe?
B. The nurse empties the syringe in . What is the flow speed of the medicine through the needle?
94% of StudySmarter users get better grades.Sign up for free