After Exercising for a Few Minutes,a Person Has a Respiratory $v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)$

question 7

Multiple Choice

After exercising for a few minutes,a person has a respiratory cycle for which the velocity of airflow is approximated by​ $v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)$ , ​
Where t is the time (in seconds) .
(Inhalation occurs when v > 0 and exhalation occurs when v < 0. )
​
Find the number of cycles per minute.
​

• A)12 cycles/min
• B)10 cycles/min
• C)15 cycles/min
• D)13 cycles/min
• E)11 cycles/min

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A product that is uniform in quality and features across different producers, making it indistinguishable between sources.

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The charges incurred for the production of an additional unit of a good or service.

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A loss of economic efficiency that can occur when the equilibrium for a good or a service is not achieved due to market inefficiencies.