(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 1.8mL syringe has an inner diameter of 5.6mm, a needle inner diameter of .26mm, and a plunger pad diameter (where you place your finger) of 1.0 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100.

a.) What in the minimum force the nurse needs to apply to the syringe?

b.) The nurse empties the syringe in 2.2s. What is the flow speed of the medicine through the needle?

2. Relevant equations

Q = delta V/ delta t

Q = vA

3. The attempt at a solution

I have no idea how to start part a. For part b I tried the first equation to get a Q of 8.18X10-7. Then I used the second equation to get v = 3.852.

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# Homework Help: Force and flow speed of a syringe

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