An Airplane with a Wingspan of 79

question 65

Multiple Choice

An airplane with a wingspan of 79.0 m flies parallel to the Earth's surface at a point where the downward component of the Earth's magnetic field is 0.490 × l0−⁴ T.If the induced potential between wingtips is 0.875 V,what is the plane's speed?

• A)54.3 m/s
• B)33.9 m/s
• C)226 m/s
• D)17 900 m/s
• E)111 m/s

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Definitions:

Perfect Competition

A market structure characterized by a large number of small firms, identical products, perfect information, and no barriers to entry or exit.

Multiplant Firm

A company that operates in more than one location, often to take advantage of different regional resources or markets.

Marginal Costs

The cost associated with producing an additional unit of output in a production process.

Maximize Revenue

The process of adjusting price levels, production quantities, and sales strategies to achieve the highest possible sales income.