Planets Go Around the Sun in Elliptical Orbits $F_{\perp}$ Are the Components of the Force Parallel (Tangential) and Perpendicular

question 30

Multiple Choice

Planets go around the sun in elliptical orbits. The highly exaggerated diagram below shows a portion of such an orbit and the force on the planet at one position along that orbit. The planet is moving to the right. F|| and $F_{\perp}$ are the components of the force parallel (tangential) and perpendicular (normal) to the orbit. The work they do is W|| and $W_{\perp}$ . At the position shown:

• A)W|| slows the planet down; \(W_{\perp}\) speeds it up.
• B)W|| slows the planet down; \(W_{\perp}\) does no work on it.
• C)W|| speeds the planet up; \(W_{\perp}\) does no work on it.
• D)W|| speeds the planet up; \(W_{\perp}\) slows it down.
• E)W|| does no work on it; \(W_{\perp}\) speeds the planet up.

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Definitions:

Retained Earnings

The portion of net earnings not distributed as dividends to shareholders but retained by the company for reinvestment or debt payment.

Stock Dividend

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Total Stockholders' Equity

The total value of a company's assets that are claimable by its shareholders, excluding liabilities.

Common Stock

A type of security representing ownership in a corporation, with holders having a claim on part of the company's assets and profits.