Write the density and its associated uncertainty of a cylinder

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SUMMARY

The discussion focuses on calculating the density and associated uncertainty of a cylinder with a height of 0.03378 m, a diameter of 0.01876 m, and a mass of 7.99 g ± 0.01 kg. The volume is computed using the formula V = L * π * R², resulting in 0.00000933716 m³. The density is determined using the formula p = M/V, yielding a density of 0.0000008288 kg/m³. The uncertainty in density is calculated to be 0.17 using the propagation of uncertainty formulas.

PREREQUISITES
  • Understanding of volume calculation for cylinders using V = L * π * R²
  • Knowledge of density calculation using p = M/V
  • Familiarity with uncertainty propagation techniques
  • Basic proficiency in handling measurements and units in physics
NEXT STEPS
  • Study the principles of uncertainty propagation in experimental physics
  • Learn about the significance of significant figures in measurements
  • Explore advanced volume calculations for irregular shapes
  • Investigate the effects of temperature and pressure on density measurements
USEFUL FOR

This discussion is beneficial for students in physics or engineering, particularly those working on laboratory experiments involving measurements, density calculations, and uncertainty analysis.

Minou
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Homework Statement



Need to find the volume and density of a cylinder with measurements, height=0.03378m diameter=0.01876m and mass=7.99g +/- 0.01 kg
And also its associated uncertainties.

Homework Equations



V=L*Pi*R^2
=0.00000933716m^3

p=M/V
=0.0000008288

The Attempt at a Solution



V=L*Pi*R^2
=0.03378*Pi*0.01876^2
=0.00000933716m^3
 
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This is what i have for the uncertainty so far.

ΔZ=ΔX*Y+ΔY*X
Z=P X=M Y=V
ΔP=0.01(9.337)+0.01(7.99)
=0.17

ΔZ/Z=ΔX/X+ΔY/Y
ΔZ=(0.01/7.99+0.01/9.337)*0.856
=0.002
 

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