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Question: Intravenous injections are commonly performed with a hypodermic needle and syringe. Assume that the dimensions of the needle are length = L, radius of the needle = 3.3x10?4 m, radius of the syringe = 5x10?3 m and that the drug solution has the properties of water.

a. Assume that 1 mL of a drug solution must be injected over a 3 sec period. Will the flow through the needle be laminar or turbulent?

b. Derive a general expression for the force that must be applied to the plunger in the syringe in order to accomplish an injection of V mL of drug solution in T sec.

c. What is the force required to achieve the conditions in part a?

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Category:- Biology
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