Suppose that at a certain instant of time, the wavefunction shown below describes a certain quanton’s state. 
The function is zero for ?x? > a and sinusoidal with a constant amplitude for ?x? < a. If we were to perform an experiment to locate the quanton, within which of the ranges above would we be most likely to find it?
A. Range I
B. Range II
C. Range III
D. Ranges I and III have equal probability; II smaller
E. All three ranges have equal probability.
E. All three ranges have equal probability.
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An electron, moving south, enters a magnetic field. Because of this field, the electron curves upward. We may conclude that the magnetic field must have a component
A) downward. B) towards the east. C) towards the north. D) upward. E) towards the west.
If a rock sample contains uranium and lead, but no lead-204 is present, then
a. all the lead is radiogenic. b. all the lead is primordial. c. both radiogenic and primordial lead are present. d. neither radiologic nor primordial lead is present.
The type of nuclear reactor used in the United States was originally developed
A) during the Manhattan project. B) in Canada. C) as part of the H-bomb program. D) by private industry. E) for submarines.
An electric clothes dryer draws 20 A at 220 V. If the clothes put into the dryer have a mass of 7.0 kg when wet and 3.0 kg dry, how long does it take to dry the clothes? (Assume all heat energy goes into vaporizing water, Lv = 2.26 × 10^6 J/kg.)
a. 55 min c. 16 min b. 26 min d. 34 min