A 5 mL syringe has an inner diameter of 7 mm and is attached to a needle with an inner diameter of 0.27 mm. A nurse press on the plunger end with a diameter of 1.2 cm to inject fluid into a patient's artery where the blood pressure is 120/80 (measured in mmHg). Assume the liquid is an ideal liquid. What is the minimum force the nurse need to apply to plunger end of the syringe? 0.327 N 1.148 N 0.825 N None of the above 0.616 N
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Given that the diameter of the plunger end is 1.2 cm, the radius (r) is 0.6 cm or 0.006 m. The area (A) of the plunger end is calculated as A = πr^2. Substitute the values to find the area: A = π(0.006)^2 = 0.000113097 m^2. Show more…
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