Earth Has Been Sending Out Strong Radio Messages for About

question 43

Multiple Choice

Earth has been sending out strong radio messages for about 115 years,so detection equipment on a hypothetical planet 115 light-years away might just now begin receiving them.What is the parallax angle subtended by a system at this distance? Can we detect such a parallax angle with our present technology?

• A) 0.0027 arcseconds; no
• B) 0.0087 arcseconds; yes
• C) 0.028 arcseconds; yes
• D) 115 arcseconds; yes

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Definitions:

Arbitragers

Traders who buy and sell assets, such as stocks or commodities, in different markets or forms to profit from differing prices for the same asset.

Risk-Free Profits

Profits made from an investment that is considered to have no risk of financial loss.

Swap Market

The swap market is a financial market where parties exchange streams of cash flows or other financial instruments for a set period, often to manage risk or obtain better loan terms.

Fed Funds Rate

The rate at which banks and other financial institutions borrow and lend their Federal Reserve deposits to one another on an overnight basis.