Two coherent waves reach the same point in phase. One wave has amplitude 8 units and the other has amplitude 6 units. The amplitude of the superposed wave is ______ units.
A. 6
B. 8
C. 10
D. 14
E. 2
D. 14
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Exclusion Principle: Which one of the following is the correct electronic configuration for carbon, which has 6 electrons?
A. 1s2 2s2 2p2 B. 1s1 2p1 C. 1s1 2s2 2p1 D. 1s1 2s1 2p1 E. 1s2 2s2 2p4
The magnetic field at a distance of 2 cm from a long straight current-carrying wire is 4 ?T. What is the magnetic field at a distance of 1 cm from this wire?
A) 2 ?T B) 4 ?T C) 6 ?T D) 8 ?T E) 10 ?T
The collision of two gamma rays can result in a single particle
Indicate whether the statement is true or false
Which of the following best describes the current scientific view of possibilities of travel to distant parts of our galaxy (or universe) with such things as hyperspace, wormholes, or warp drive?
A) We do not know if travel in any of these ways is really possible, but they do not contradict any known laws of physics. B) There is no doubt that such travel is possible, though it remains well beyond our current technology. C) They sound like fun, but they are not possible because they allow faster-than-light travel. D) They seemed to be allowed by special relativity, but general relativity does not allow for them.