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
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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
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
Which of the following has the highest frequency?
a) Visible light b) Microwaves c) Infrared d) Radiowaves
What is the magnitude of the magnetic field at point P if a = R and b = 2R?
A.
B.
C.
D.
E.
