For the principle quantum number n = 4, how many values can the orbital quantum number have?
A. 9
B. 5
C. 4
D. 3
E. 32
C. 4
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To what types of electrically charged objects does Coulomb's law apply?
A) only pointlike particles B) any symmetric objects C) it applies to all such objects D) only pointlike particles and objects that can be treated as particles E) it applies to all such objects as long as they are not moving
Consider a wire in a magnetic field, as shown in the following figure, with a current flowing upward through it. What will happen to the wire?
a. The wire will be forced toward the north pole.
b. The wire will be forced perpendicular to the plane of the magnetic field, into the page.
c. The wire will be forced perpendicular to the plane of the magnetic field, out of the page.
d. The current will cease flowing.
e. The wire will be forced toward the south pole.
A uniform rod (mass m = 1.0 kg and length L = 2.0 m) pivoted at one end oscillates in a vertical plane as shown below. The period of oscillation (in s) is approximately
?
?
A. 4.0. B. 1.6. C. 3.2. D. 2.3. E. 2.0.
If an R = 1.0-k? resistor, a C = 1.0-?F capacitor, and an L = 0.20-H inductor are connected in series with a V = 150 sin (377t) volts source, what is the maximum current delivered by the source?
a. 0.007 0 A b. 27 mA c. 54 mA d. 0.31 A e. 0.34 A