A Common Trick to Open the Lid of a Jar $\circ$

question 4

Multiple Choice

A common trick to open the lid of a jar that is stuck is to put the lid under hot running water.Suppose the diameter of the lid of a jar of strawberry jam is 6 cm,by how much does the circumference change if the temperature is increased by 30 ^$\circ$ C? Assume the lid is made of steel.

• A)2.0\(\times\)10 ^-3 cm
• B)3.1\(\times\)10 ^-3 cm
• C)4.1\(\times\)10 ^-3 cm
• D)6.2\(\times\)10 ^-3 cm
• E)5.2\(\times\)10 ^-3 cm

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Definitions:

Output

The total amount of goods or services produced by a person, machine, business, country, etc., during a given period.

Economic Profit

The net gain or loss after removing both easily identifiable and not readily apparent expenses from the overall turnover.

Price

The amount of money or compensation given in exchange for goods or services in a market.

Diagram

A simplified representation or drawing that illustrates relationships or processes, often used in economics to demonstrate concepts or data visually.