The angular speed of the minute hand of a clock, in rad/s, is
A.
.B.
.C.
.D.
E.
Answer: C
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Series/Parallel Circuits: A 6.0-? and a 12-? resistor are connected in parallel across an ideal 36-V battery. What power is dissipated by the 6.0-? resistor?
A. 220 W B. 48 W C. 490 W D. 24 W
A steel lift column in a service station is a solid cylinder 4.0 m long and 0.20 m in diameter. Young's modulus for this steel is 20 × 1010 N/m2. By what distance does the column compress when a 5000-kg truck is on it?
A) 4.7 × 10-7 m B) 8.0 × 10-7 m C) 3.2 × 10-6 m D) 7.8 × 10-6 m E) 3.1 × 10-5 m
More toll booths on a highway is analogous to a
A) series circuit. B) parallel circuit. C) complex combination of both of these
You are conducting an experiment with a converging lens and have set it up to produce a real image of a tree in the distance. You then cover the top half of the lens with opaque paper. What occurs?
A. The bottom half of the image is missing B. Nothing happens C. The image becomes half as large D. The image is complete, but dimmer than it was E. The top half of the image is missing