Which statement about Jupiter's rings is true?
A) They lie inside Jupiter's Roche Limit.
B) They are made, in part, of material ejected by Europa's volcanoes.
C) They are dark because their ices are dirtier than Saturn's.
D) They are larger than Saturn's, but darker.
E) They were discovered by Galileo at the same time he discovered the moons.
A
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A book is sitting on a desk top. Identify the 3rd law partner of the weight of the book.
A. the force of the desk on the book B. the force of the book on the desk C. the force of the earth on the book D. the force of the book on the Earth
The ratio of the speed of light in a vacuum to the speed of light in a medium is known as the index of
a. reflection. b. refraction. c. diffraction. d. none of these.
An ac source having a maximum voltage output of 30 V is connected in series with a 50-? resistor, a 0.60-H inductor, and a 20-µF capacitor
What is the maximum charge on the capacitor when the frequency of the source is adjusted so that the circuit is in resonance? A) 2.1 mC B) 8.4 mC C) 4.2 mC D) 0.00 mC E) 1.0 mC
Is the decay ?0 ? ?+ + v? allowed?
A) No, because mass is created. B) Yes, because it conserves energy. C) No, because charge is not conserved. D) No, because lepton number is not conserved.