A series of n uncharged concentric shells surround a small central charge q. The charge distributed on the outside of the nth shell is
a. ?nq.
b. ?(ln n)q.
c. +q.
d. +(ln n)q.
e. +nq.
c
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The longitudinal strength of wood is due to the high strength of crystalline _________cells.
Fill in the blank(s) with the appropriate word(s).
What is the relationship between the image distance and the object distance for a plane (flat) mirror?
A. They are not related B. The image distance is double the object distance C. The image distance is half the object distance D. They are the same.
A series RC circuit has a time constant of 0.900 s. The battery has an emf of 24.0 V, and the maximum current in the circuit is 0.500 mA.What is the charge stored in the capacitor 2.00 s after the switch is closed?
a. 401 ?C b. 18.8 ?C c. 108 ?C d. 450 ?C
A deuteron is accelerated from rest through a 10-kV potential difference and then moves perpendicularly to a uniform magnetic field with B = 1.6 T. What is the radius of the resulting circular path? (deuteron: m = 3.3 × 10^?27 kg, q = 1.6 × 10^?19 C)
a. 19 mm b. 13 mm c. 20 mm d. 10 mm e. 9.0 mm