A light bulb operating at a dc voltage of 120 V has a power rating of 60 W. How much current is flowing through this bulb?
A) 1.5 A
B) 2.5 A
C) 0.50 A
D) 2.0 A
E) 1.0 A
C
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Characteristics of Waves: A fisherman fishing from a pier observes that the float on his line bobs up and down, taking 2.4 s to move from its highest point to its lowest point. He also estimates that the distance between adjacent wave crests is 48 m. What is the speed of the waves going past the pier?
A. 1.0 m/s B. 20 m/s C. 10 m/s D. 5.0 m/s E. 120 m/s
A large school district has 300 school buses. If each school bus is used 3.0 hours each day, the average speed of the school buses is 15 mi/h, and the fuel economy of the buses is 10 mi/gal
How much does it cost to run these buses for 22 school days if gasoline costs $4.10 a gallon? A) $60,000 B) $120,000 C) $180,000 D) $240,000
The electric field on a given gaussian surface is determined by all the charged particles in the entire universe. Nonetheless, the net flux of the electric field through that surface only depends on the charged particles inside that surface.
Answer the following statement(s) true (T) or false (F)
Which arrow best indicates the position (relative to P) of the greatest concentration of positive charge on the sphere’s surface?
A. A B. B C. C D. D E. Zero F. AA G. BB H. CC I. DD