A Jet Plane Travels Around the World at 2 000

question 26

Multiple Choice

A jet plane travels around the world at 2 000 mi/hr (894 m/s) . Two accurate atomic clocks measure the times of flight, one on board the plane and the second on Earth. If it takes 12 hours to complete the journey, what will the time difference (in μs) be?

• A) 0.75
• B) 0.50
• C) 0.25
• D) 1.0
• E) 0.19

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