A Copper Plate Has a Hole with a Diameter of 2.50

question 61

Multiple Choice

A copper plate has a hole with a diameter of 2.50 cm.A copper shaft with a diameter of 2.501 cm is to be inserted into the hole.If the linear coefficient of thermal expansion for copper is 17.0 $\times$ 10^-6/ $^{\circ}$ C,then what is the decrease in temperature the copper shaft has to be subjected to in order to allow the shaft to just fit inside the hole?

• A) 23.5\(^{\circ}\)C
• B) 26.4\(^{\circ}\)C
• C) 30.1\(^{\circ}\)C
• D) 33.3\(^{\circ}\)C
• E) 39.5\(^{\circ}\)C

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Definitions:

Selective Observation

The process of focusing attention on specific events or phenomena while ignoring others, which can lead to biased conclusions or skewed perceptions.

Contradictory Evidence

Information or data that directly opposes previously established facts or theories, raising questions about the accuracy or truth of the subject in question.

Cherished Beliefs

Cherished beliefs are deeply held convictions or values that individuals or communities regard as of paramount importance.

Participant Observation

Involves carefully observing people’s face-to-face interactions and actually participating in their lives over a long period, thus achieving a deep and sympathetic understanding of what motivates them to act in the way they do.