Volume of Revolution (Disk Method)

Compute the volume of a solid formed by rotating y=f(x) around the x-axis: V = π∫_a^b [f(x)]² dx (disk method). Around y-axis use shell method: V = 2π∫_a^b x|f(x)| dx.

 
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Physical Constants Reference
ConstantSymbolValue
Speed of lightc2.99792458×10⁸
Planck's constanth6.62607015×10⁻³‴
Boltzmann constant1.380649×10⁻²³
Avogadro's numberNₐ6.02214076×10²³
Gravitational constantG6.6743×10⁻¹¹
Gas constantR8.31446
Elementary chargee1.602176634×10⁻¹⁹
Electron massmₑ9.1093837015×10⁻³¹
Proton massmₚ1.67262192369×10⁻²⁷
Fine-structure constantα7.2973525693×10⁻³
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How to Use

Enter the values for the scenario you are assessing. Compute the volume of a solid formed by rotating y=f(x) around the x-axis: V = π∫_a^b [f(x)]² dx (disk method). Around y-axis use shell method: V = 2π∫_a^b x|f(x)| dx. Use the volume of revolution result to inform your calculation.

Frequently Asked Questions