Suppose the barn shown here is 10 meters long and the pole is 11.5 meters long. What is the minimum velocity that the pole has to travel relative to the barn for someone standing in the barn to measure the pole's length to be 10 meters or less?

a. 1/4 of the speed of light.
b. 1/2 of the speed of light.
c. 80% of the speed of light.
d. The speed of light c.
e. 110% of the speed of light.


b

Physics & Space Science

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The movement of a pool ball, after being struck by a cue, is an example of

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As a pressurized aircraft gains altitude, the force acting on the boarding door due to the difference between the outside air pressure and the pressure inside the aircraft _____________ with height

Fill in the blank(s) with correct word

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a) watts. b) joules. c) amperes. d) coulombs.

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