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A uniform solid brass sphere is rotating...

A uniform solid brass sphere is rotating with angular speed `omega_0` about a diameter. If its temperature is now increased by `100^@C`, what will be its new angular speed. (given`alpha_B=2.0xx10^-5per^@C`)

A

`(omega_(0))/(1-0.002)`

B

`(omega_(0))/(1+0.002)`

C

`(omega_(0))/(1+0.004)`

D

`(omega_(0))/(1-0.004)`

Text Solution

AI Generated Solution

To find the new angular speed of a uniform solid brass sphere after its temperature is increased by \(100^\circ C\), we can follow these steps: ### Step 1: Understand the Moment of Inertia The moment of inertia \(I\) of a solid sphere about its diameter is given by the formula: \[ I = \frac{2}{5} m r^2 \] where \(m\) is the mass of the sphere and \(r\) is its radius. ...
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