Which of the following best describes what we mean by a worm hole?

A) A proven way of traveling through space faster than the speed of light.
B) A possible method of traveling through space faster than the speed of light.
C) A discarded idea about time travel that physicists now know to be impossible.
D) A hypothesized but unproven type of "tunnel" through hyperspace that connects distant points in the real universe.


D

Physics & Space Science

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Mercury is larger than Earth's Moon but smaller than Earth

a. True b. False Indicate whether the statement is true or false

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Waves on a String: A 10-gram wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along the wire, its wavelength is 0.60 m,and its amplitude is 8.4 mm. How much time does it take for a crest of the transverse wave to travel the length of the wire?

A. 36 ms B. 31 ms C. 40 ms D. 44 ms E. 49 ms

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Which of the following has the highest frequency?

a) Visible light b) Microwaves c) Infrared d) Radiowaves

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What is the magnitude of the magnetic field at point P if a = R and b = 2R?

A.


B.

C.

D.

E.

Physics & Space Science