Which Statement About Extrasolar Planets Found to Date Is True

question 46

Multiple Choice

Which statement about extrasolar planets found to date is true?

• A) All are terrestrials, comparable in size to Earth.
• B) Few are found by Doppler shifts of their stars, due to their gravity.
• C) All lie more than 2 A.U. from their star.
• D) Most have orbital periods of more than a year.
• E) Some are so close to their stars that their periods are just a few days.

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Definitions:

Equilibrium Interest Rate

The interest rate at which the demand for funds equals the supply of funds, balancing savings and investments.

R&D Spending

Expenditures on research and development to innovate and improve products or processes.

Equilibrium Interest Rate

The interest rate at which the quantity of money demanded equals the quantity of money supplied.

Nominal Interest Rate

The rate of interest before adjustments for inflation, representing the face value of interest payments.