Exclusion Principle: In a hydrogen atom, an electron with n = 7 can exist in how many different quantum states?
A. 6
B. 7
C. 15
D. 98
Answer: D
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The neap tides can only occur when the Moon's position is at or near one of its orbital nodes
a. True b. False Indicate whether the statement is true or false
Scientists were led to postulate the existence of the neutrino in order to
A) maintain the conservation of energy and of momentum in beta decay. B) provide a mechanism for quark production. C) account for alpha decay. D) explain the intense radiation emitted by quasars.
A 25-m wire of diameter 0.30 mm draws 0.499 A when connected across a 3.0-V potential difference. (a) What is the resistance of the wire? (b) What is the resistivity of the material from which the wire is made?
What will be an ideal response?
A ball is thrown straight up. At what point does the ball have the most energy?
(a) At the highest point of its path. (b) When it is first thrown. (c) Just before it hits the ground. (d) When the ball is halfway to the highest point of its path. (e) Everywhere; the energy of the ball is the same at all of these points.