If an Astronaut Were to Look Back from His Spacecraft

question 36

Multiple Choice

If an astronaut were to look back from his spacecraft toward the solar system and measure that the angle between Earth and the Sun was 1 arcsecond, how far from the un would the astronaut be? (Assume that the Earth-Sun line is at right angles to your line of sight.)

• A) 1 Mpc
• B) 1 au
• C) 1 pc
• D) 1 ly

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Definitions:

Treasury-bill Rate

The interest rate paid by U.S. Treasury bills, considered a benchmark for risk-free rates in the United States.

Fair Return

The reasonable profit that investors can expect to earn from their investment, considering the risk involved.

Market Signals

Indications or signs derived from market data that can suggest the future direction of market prices.

Sarbanes-Oxley Act

A U.S. federal law enacted in 2002 to protect investors by improving the accuracy and reliability of corporate disclosures.