A String Is Stretched with a Tension of 120 N $\times$

question 28

Multiple Choice

A string is stretched with a tension of 120 N.The string has a length of 2.5 meters.The velocity of wave propagation along the string is 220 m/s.The mass per unit length of the string is

• A) 5.8 \(\times\) 10^-3 kg/m.
• B) 5.0 \(\times\) 10^-3 kg/m.
• C) 4.2 \(\times\) 10^-3 kg/m.
• D) 3.7 \(\times\) 10^-3 kg/m.
• E) 2.4 \(\times\) 10^-3 kg/m.

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Definitions:

Tennis Balls

Small, usually yellow, hollow rubber balls covered in a fibrous felt, used in the game of tennis.

Tennis Racquets

Sporting equipment consisting of a handled frame with an open hoop across which a network of strings is stretched, used to hit a tennis ball.

Demand Schedule

A table that shows the quantity of a good or service that consumers are willing to buy at each price point.

Supply Schedule

A table that shows the relationship between the price of a good and the quantity of that good a supplier is willing to offer for sale at each price level.