Author Question: A meterstick is shot from a meterstick projector at a speed of 0.90 c. How long will it be relative ... (Read 67 times)

javeds · **on:** Jul 28, 2018

A meterstick is shot from a meterstick projector at a speed of 0.90 c. How long will it be relative to an observer's frame of reference?
a. 2.3 m
b. 0.91 m
c. 1.0 m
d. 0.44 m
e. 0.81 m

Question 2

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 ms) be?
a. 0.75
b. 0.50
c. 0.25
d. 1.0
e. 0.19