What is the Net Pressure in a Syringe?

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A nurse applies a force of 4.35 N to a syringe piston with an area of 5.99x10-5 m², leading to a calculated pressure of approximately 36.31 kPa. The formula used was pressure equals force divided by area, but the program did not accept this answer. There is confusion regarding the calculation, as the net pressure inside the syringe should account for atmospheric pressure outside. The discussion highlights the importance of understanding the difference between absolute pressure and gauge pressure. Clarification on the correct approach to net pressure in this context is needed.
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Homework Statement


A nurse applies a force 4.35 N to the piston of a syringe. The piston has an area of 5.99x10-5m2. What is the pressure in the fluid within the syringe? Answer in kPa.


Homework Equations


mg/2A=\DeltaP


The Attempt at a Solution


4.35/2*5.99x10-5= 36310.518 Pa converted to 36.31 kPa

I thought I was doing this right but the program isn't accepting my answer. Is there something that I did wrong? I've been having all sorts of issues with this assignment that I thought was fairly easy.
 
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I think pressure is just force/area
 
Thanks, that was right. My TA told the class that this one was just like one of our other problems but it isn't, that was part of my problem.
 
Net pressure in the fluid with in the syringe is
P = Pressure in side the syringe - atmospheric pressure out side the syringe.
 

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