At \[15{}^\circ C,\] a wheel has diameter of 30 cm and inside diameter – McqOptions

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1.	At \[15{}^\circ C,\] a wheel has diameter of 30 cm and inside diameter of a steel rim is 29.9 cm. Coefficient of thermal expansion of steel is \[1.2\times {{10}^{-5}}{{/}^{o}}C\]. To what temperature, the rim must be heated so that it can slip over wheel?
A.	\[2787{}^\circ C\]
B.	\[2772{}^\circ C\]
C.	\[2529{}^\circ C\]
D.	\[2802{}^\circ C\]
Answer» E.

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