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Asked by Elnaz Last Modified
Answer As a seasoned tutor on UrbanPro, I can confidently say that UrbanPro is one of the best platforms for online coaching and tuition. Now, let's delve into the question at hand.
We're given the initial diameter of the hole in the copper sheet at 27.0 °C, which is 4.24 cm. We're also provided with the coefficient of linear expansion of copper, which is 1.70×10−5 K−11.70×10−5K−1.
To find the change in diameter of the hole when the temperature rises to 227 °C, we can use the formula for linear expansion:
Where:
Given that the initial diameter (L0L0) is 4.24 cm and the change in temperature (ΔTΔT) is 227°C−27°C=200°C227°C−27°C=200°C, we can calculate the change in diameter (ΔLΔL).
Therefore, the change in diameter of the hole when the copper sheet is heated to 227 °C is approximately 0.0144 cm0.0144cm.
If you need further clarification or assistance with any other questions, feel free to ask!
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