The Hole for a Bolt in a Brass Plate Has

question 1

Multiple Choice

The hole for a bolt in a brass plate has a diameter of 1.200 cm at 20°C.What is the diameter of the hole when the plate is heated to 220°C? The coefficient of linear thermal expansion for brass is 19 × 10^-6/°C.(Express your answer to 4 significant figures.)

• A)1.205 cm
• B)1.125 cm
• C)1.195 cm
• D)1.200 cm
• E)1.210 cm

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Definitions:

Dependent Variable

The variable in an experiment or study that is expected to change in response to changes in another variable (the independent variable).

Independent Variables

Variables in an experiment or model that are manipulated or changed to observe their effect on dependent variables, helping to determine causal relationships.

Specific Risk

The risk associated with individual securities or businesses, distinct from overall market risk, that can be mitigated through diversification.

Standard Error

A statistical term that measures the accuracy with which a sample distribution represents a population by using standard deviation.