A hypodermic syringe has a plunger of area 2.5 cm2 and a 5.0 X10-3 cm2 needle.
a. If a 1.0-N force is applied to the plunger, what is the gauge pressure in the syringe's chamber?
b. If a small obstruction is at the end of the needle, what forcedoes the fluid exert on it?
c. If the blood pressure in a vein is 50 mm Hg, what force must beapplied on the plunger so that fluid can be injected into the vein?