Which of the following statements about the Michelson-Morley experiment is correct?

A.The physics world was immediately convinced of the null result on ether.
B.The interferometer measured large effects from the ether, showing that the velocity of light changes depending on motion with respect to the ether.
C.Changing the angle of the interferometer produced different results.
D.They found that the interference effects of the ether were not dependent on the direction of motion of the interferometer.

D. They thought that movement through the ether, which supposedly had some inherent motion itself, would create interference effects in their interferometer. Instead, they saw no effects whatsoever on the direction of the motion of the interferometer through space and the interference patterns on the interferometer.

Physics & Space Science

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What will be an ideal response?

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If in the future significant amounts of antimatter could be made, it might be prevented from annihilating with ordinary matter by containing it in

A) a magnetic field B) a gravitational filed C) an electric field D) a wormhole

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General Questions: In order to lift a bucket of concrete, you must pull up harder on the bucket than the bucket pulls down on you.

A. True B. False

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What is the potential difference VB ? VA when the I = 1.5 A in the circuit segment below?



a.
+22 V

b.
?22 V

c.
?38 V

d.
+38 V

e.
+2.0 V

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