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A hypodermic needle is 4.0 cm long and has an inner diameter of 0.25 mm. Assume...

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Physics

A hypodermic needle is 4.0 cm long and has an inner diameter of0.25 mm. Assume the syringe contents have the same properties aswater and is at 20 ï‚°C. a. What pressure is needed to deliver asteady flow of 0.1 cm3 per second? b. If the inner diameter of theneedle were increased by 20%, what pressure would be needed todeliver the same flow?

Answer & Explanation Solved by verified expert
3.8 Ratings (523 Votes)
GivenInner diameter D 025 mm 25104 mCross sectional area A D22 3142510422 314125125108 491108 m2Steady flow Q 01    See Answer
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