Which of the following statements about the rings of the four jovian planets is not true?
A) All rings lie within two to three planetary radii of their planet.
B) All the particle orbits are fairly circular and near their planet's equatorial plane.
C) All have gaps and ringlets.
D) All probably look much the same as they did when the solar system first formed.
E) All are made of individual particles of rock or ice that orbit in accord with Kepler's laws: inner ring particles orbiting faster, and outer ring particles orbiting slower.
D) All probably look much the same as they did when the solar system first formed.
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The chromosphere of the sun
a. is hotter than the photosphere. b. appears yellow-white in color during total solar eclipse. c. is the visible surface of the sun. d. produces an absorption spectrum. e. all of the above
The total kinetic energy in one mole of an ideal gas is 4,000 J. What is the average kinetic energy of an individual particle in the ideal gas?
a. 
b. 
c. 
d. 
e. 
A girl throws a stone straight down from a bridge. The stone leaves her hand with speed of 8.00 m/s at a height of 12 m above the water below. How much time does it take for the stone to hit the water?
A) 2.58 s B) 0.95 s C) 1.8 s D) 0.41 s E) 17.3 s
The natural sciences are divided into physical sciences and ______________ sciences
Fill in the blank(s) with correct word