If it is 2:00 P.M. EST in Washington, D.C., what is the time in San Diego, California, the longitude of which is 45° more westerly?
a. 1:00 P.M. PST
b. 11:00 A.M. PST
c. Noon PST
d. 5:00 P.M. PST
b
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A layer of water (n = 1.333) floats on carbon tetrachloride (n = 1.461) contained in an aquarium. To the nearest degree, what is the critical angle at the interface between the two liquids?
A. 88° B. 78° C. 66° D. 58° E. 43°
Which one of the following is the correct electronic configuration for carbon, which has 6 electrons?
A) 1s1 2s1 2p1 B) 1s1 2p1 C) 1s2 2s2 2p2 D) 1s2 2s2 2p4 E) 1s1 2s2 2p1
A 6.0-?F air capacitor is connected across a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5)
How much additional charge flows from the battery, which remained connected during the process? A) 1.2 mC B) 1.5 mC C) 1.7 mC D) 2.1 mC E) 2.5 mC
Capacitors in Combination: Suppose you have two capacitors and want to use them to store the maximum amount of energy by connecting them across a voltage source. You should connect them
A. in series across the source. B. in parallel across the source. C. It doesn't matter because the stored energy is the same either way.