If the Distance of a Galaxy Is 100 Mpc,what Is

question 22

Multiple Choice

If the distance of a galaxy is 100 Mpc,what is its recessional velocity if the Hubble constant is 72 km/s/Mpc?

• A) 0.72 km/s
• B) 1.40 km/s
• C) 1,000 km/s
• D) 7,200 km/s

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Definitions:

Logic Bomb

A computer virus that runs when a certain set of conditions is met, such as when a program is launched a specific number of times.

Pharming

Planting malicious code on a computer that alters the browser’s ability to find web addresses and that directs users to bogus websites.

Spyware

Malicious software that aims to gather information about a person or organization without their knowledge, often used for tracking and advertising purposes.

Adware

Software that automatically displays or downloads advertising material when a user is online.