Start Free Mock LoginAlready registered? Login here

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediumnumerical

A freely rotating cylinder expands by 0.50\% in each length, without external torque. Find percentage angular-speed decrease using exact geometry, to three decimals.

Answer:

0.99

Solution:

$\frac{I ^{'}}{I} = (1.005)^{2}$ and $\frac{ω ^{'}}{ω} = \frac{1}{( 1.005 ) ^{2}} = 0.9900745$ . Decrease $= 0.99255%$ , rounding to $0.993%$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...