Future Space Stations Will Create an Artificial Gravity by Rotating

question 46

Multiple Choice

Future space stations will create an artificial gravity by rotating.Consider a cylindrical space station of 380 m diameter rotating about its axis.Astronauts walk on the inside surface of the space station.What rotation period will provide "normal" gravity?

• A)28 s
• B)39 s
• C)6.2 s
• D)4.4 s

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Definitions:

Dividend

The distribution of a portion of a company's earnings, decided by the board of directors, to a class of its shareholders. Dividends can be issued as cash payments, as shares of stock, or other property.

Share Repurchase

A company's buyback of its own shares from the marketplace, reducing the number of outstanding shares and potentially increasing share value.

Dividend Per Share

The amount of dividend that a company pays out to each shareholder for each share they own.

Retention Ratio

The retention ratio is a financial metric indicating the percentage of a company's profits that are reinvested in the business rather than distributed as dividends to shareholders.