As Measured from Earth, a Second of Time Marked by a Clock

question 23

Multiple Choice

As measured from Earth, a second of time marked by a clock aboard a fast (hypothetical) interstellar ship moving at v = 0.95c would be ________ compared with the second marked by a clock at rest on Earth.

• A) 70.71 times shorter
• B) 70.71 times longer
• C) 7.09 times shorter
• D) 3.20 times longer
• E) 3.20 times shorter