What is the impedance of an AC series circuit that is constructed of a 12.5-? resistor along with 13.6-? inductive reactance and 3.43-? capacitive reactance?
a. 29.5 ?
b. 22.7 ?
c. 18.2 ?
d. 16.1 ?
e. 3.36 ?
d
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In the two-slit experiment, monochromatic light of frequency 5.00 × 1014 Hz passes through a pair of slits separated by 2.20 × 10-5 m. (c = 3.00 × 108 m/s)
(a) At what angle away from the central bright spot does the third bright fringe past the central bright spot occur? (b) At what angle does the second dark fringe occur?
How many values can the magnetic quantum number have in a hydrogen atom for which the orbital angular momentum quantum number is equal to 8?
A) 5 B) 17 C) 15 D) 8 E) 9
What is true about solar system densities?
A) The denser planets lie closer to the Sun. B) In differentiated bodies, the denser materials lie near their surfaces. C) The asteroids all have about the same density. D) Saturn has the same density as water. E) Planetary density increases with increasing distance from the Sun.
Significant Figures: A traveler has about $536 in his checking account, about $2107 in his savings account and exactly $7.62 in his wallet. To the greatest precision warranted, how much money does this shopper have?
A. $2651 B. $2650 C. $2650.6 D. $2650.62 E. $2650.620