Which of the following statements about quantum tunneling is not true?
A) It is used in modern electronics and, in fact, our modern-day computers would not work without it.
B) Although it has been observed to occur, it violates all other known laws of nature and explaining it therefore represents a major challenge to physicists.
C) It plays a crucial role in nuclear fusion in the Sun.
D) It allows electrons and other subatomic particles to pass through wall-like energy barriers even when it seems they do not have enough energy to get through the barriers.
B
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Significant Figures: In the difference A - B - C, A is accurate to 5 decimal places, B is accurate to 2 decimal places, and C is accurate to 3 decimal places. What is the correct number of decimal places in the difference?
A. 2 B. 3 C. 4 D. 5 E. 0
The statement that "the number of field lines passing through a surface is proportional to the net charge enclosed" is known as
A) Franklin's Law. B) The Law of Enclosure. C) Coulomb's Law. D) Gauss's Law. E) Faraday's Law.
How did Eratosthenes estimate the size of Earth in 240 B.C.?
What will be an ideal response?
If luminosity depends on radius and temperature, what does flux depend on? _______________
Fill in the blank(s) with correct word