You and Your Surfing Buddy Are Waiting to Catch a Wave

question 4

Short Answer

You and your surfing buddy are waiting to catch a wave a few hundred meters off the beach.The waves are conveniently sinusoidal,and you notice that when you're on the top of one wave and moving toward your friend,she is exactly halfway between you and the trough of the wave.1.50 seconds later,your friend is at the top of the wave.You estimate the horizontal distance between you and your friend at 8.00 m.
(a)What is the frequency of the waves?
(b)Find the speed of the waves.

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Definitions:

Total Cost Function

The sum of all costs associated with the production of goods or services, including both fixed and variable costs, as a function of output level.

Profit Function

It describes a company's earnings or losses by relating total revenue to total costs, identifying the maximum profit available to a firm.

Price Elasticity

An assessment of the variation in the amount of a product that is either bought or sold, as a reaction to alterations in its cost.

Marginal Revenue

The extra revenue obtained by selling an additional unit of a product or service.