The pressure increase in a syringe when a force of 43 N is applied to a circular piston with a radius of 1.1 cm is calculated using the formula for pressure, which is defined as force divided by area. The area of the plunger is determined using the formula A = πr², where r is the radius in meters. The correct calculation yields a pressure increase of approximately 0.016346 Pa. This discussion emphasizes the importance of understanding the definition of pressure in fluid mechanics.
PREREQUISITESStudents studying physics, healthcare professionals using syringes, and engineers designing fluid systems will benefit from this discussion.
No. How is the pressure defined?Jrlinton said:Homework Statement
Find the pressure increase in the fluid in a syringe when a nurse applies a force of 43 N to the syringe's circular piston, which has a radius of 1.1 cm.
Homework Equations
The Attempt at a Solution
So the answer should just be the force multiplied by the area of the plunger, no?
43N*pi*0.011m^2
0.016346 Pa