Write the Word or Phrase That Best Completes Each Statement $$a = 0.65 \sin \left( \frac { 2 \pi } { 5 } t \right)$$

question 85

Essay

Write the word or phrase that best completes each statement or answers the question.
-Before exercising, an athlete measures her air flow and obtains
$$a = 0.65 \sin \left( \frac { 2 \pi } { 5 } t \right)$$ where a is measured in liters per second and t is the time in seconds. If a > 0, the athlete is inhaling; if a < 0, the
athlete is exhaling. The time to complete one complete inhalation/exhalation sequence is a respiratory cycle.
Find the values of t for which the athlete's air flow is zero. Find all values of t for t < 20 seconds.

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Definitions:

Pure Monopolist

A market structure wherein a single company or entity has exclusive control over the production and sale of a particular product or service, with no close substitutes.

Marginal Revenue

The additional revenue that a company receives from selling one more unit of a product.

Incremental Sales

The increase in sales generated by a specific action or event, beyond what would normally have been expected.

Nondiscriminating Monopolist

A monopolist who charges a single price for all units of the output sold, reaching every consumer who is willing to pay at least this price, rather than charging different prices.