____ in Saturn's rings is/are produced by the gravitational interaction of Mimas with the particles in the rings and appears as a large ____ in the rings
a. Cassini's division; gap
b. Cassini's division; clump
c. Moons; gap
d. Moons; clump
A
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Which of the following types of galaxies are reddest in color?
A) spirals B) ellipticals C) lenticulars D) irregulars
The pion (m? = 140 MeV/c2) is thought to be the particle exchanged in the nuclear force. What is the maximum range of this particle if its "time of existence" is as long as can be allowed by the uncertainty principle ?E??t = h/2?? (h/2? = 1.05 × 10^?34 J?s, c = 3.00 × 10^8 m/s, and 1 eV = 1.6 × 10^?19 J)
a. 1.2 × 10^?15 m b. 1.4 × 10^?15 m c. 2.0 × 10^?15 m d. 7.5 × 10^?15 m
A proton (+1.6 × 10^?19 C) moves 15.0 cm along the direction of an electric field of strength 3.0 N/C. The electrical potential difference between the proton's initial and ending points is:
a. 4.5 × 10^?19 V. b. 0.45 V. c. 24 V. d. 0.55 V. e. zero
Car batteries are often rated in ampere-hours. This information designates the amount of ______ that the battery can supply
1.current 2.power 3.energy 4.charge 5.potential