Calculating Gauge Pressure Have I worked it correctly?

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SUMMARY

The discussion focuses on calculating gauge pressure required to compress pure water from 1.000 L to 989 mL and determining the height of a steel bar needed to exert that pressure. The bulk modulus of water is specified as 2.2 x 109 N/m2. The formula used is B = ΔP/(ΔV)/V, where ΔP represents the change in pressure, ΔV is the change in volume, and V is the original volume. The discussion emphasizes the importance of providing clear calculations and responses to facilitate further assistance.

PREREQUISITES
  • Understanding of gauge pressure and its calculation
  • Familiarity with the bulk modulus concept
  • Knowledge of unit conversions between N/m2 and psi
  • Basic principles of fluid mechanics
NEXT STEPS
  • Research the application of the bulk modulus in fluid dynamics
  • Learn about pressure measurement units and conversions
  • Explore the properties of water under compression
  • Investigate the relationship between pressure, volume, and density in fluids
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This discussion is beneficial for students in physics or engineering, particularly those studying fluid mechanics, as well as professionals involved in hydraulic systems and pressure calculations.

predentalgirl1
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Simple Gauge Pressure Question

(a) Calculate the gauge pressure (it does not include atmosphereric P) required to compress pure water from 1.000 L to 989 mL. Give an answer in both N/m^2 and psi, lb/in^2.

(b) What height in meters and feet of a 1x1 cm^2 steel bar (density=7.86 g/cm^3) is required to exert the pressure found in part (a)?







3.Work and answers in the attached file.
 

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Avoid multiple postings

Hi, you seem to have posted the same question three times in different forums. I had given you an answer yesterday. If you didn't find my answer helpful. you could have just said so and others would have come forward to help you. Here's what I'd written.

==========================================
a. Use the formula for bulk modulus. B = delta P/(delta v)/v. B for water is 2.2*10^9 N/m^2.

I hope the other answers will follow.
==========================================

Where are you getting stuck?

Oh, I see that you have enclosed your work. We'll see it as soon as it's clear for approval.
 
Last edited:

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