For the Same Velocity,why Is Air Flow More Turbulent Than

question 71

Multiple Choice

For the same velocity,why is air flow more turbulent than water flow?

• A)because air has a lower density than water
• B)because air has a lower viscosity than water
• C)because air is less confined by solid boundaries than water
• D)all of the above

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Definitions:

Discounted Present Value

A method of valuing a future amount of money by applying a discount rate to adjust for time and risk.

Time Period

A specific duration for which economic data is measured or observations made.

Time-Value

The idea that having money now is more valuable than having the same sum in the future because of the potential to earn more over time.

Discounting

The process of determining the present value of a payment or a stream of payments that is to be received in the future.