Suppose That a Steel Bridge, 1000 M Long, Was Built

question 9

Multiple Choice

Suppose that a steel bridge, 1000 m long, was built without any expansion joints and that only one end of the bridge was held fixed. What would the difference in the length of the bridge be between winter and summer, taking a typical winter temperature as 0.00°C, and a typical summer temperature as 40°C? The coefficient of thermal expansion of steel is 10.5 × 10^-6 K^-1.

• A) 0.42 m
• B) 0.11 mm
• C) 0.11 m
• D) 0.42 mm
• E) 0.37 cm

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Definitions:

Complementary Resources

Goods or services that are used together, where the use of one increases the value or demand for the other.

Shift Demand

A change in the quantity demanded at every price point, caused by factors other than the price of the product itself.

Derived Demand

Demand for a good or service that arises from the demand for another good or service; for example, the demand for steel is derived from the demand for cars.

Capital

Financial assets or the financial value of assets, such as funds held in deposit accounts and/or funds obtained from special financing sources.