Which of the following correctly lists speeds from slowest to fastest?
A) Earth's speed of revolution about the Sun, typical speeds of stars in the local solar neighborhood relative to us, Earth's speed of rotation on its axis, the speed of our solar system orbiting the center of the Milky Way Galaxy, the speeds of very distant galaxies relative to us
B) Earth's speed of rotation on its axis, typical speeds of stars in the local solar neighborhood relative to us, Earth's speed of revolution about the Sun, the speed of our solar system orbiting the center of the Milky Way Galaxy, the speeds of very distant galaxies relative to us
C) the speed of our solar system orbiting the center of the Milky Way Galaxy, Earth's speed of revolution about the Sun, Earth's speed of rotation on its axis, the speeds of very distant galaxies relative to us, typical speeds of stars in the local solar neighborhood relative to us
D) Earth's speed of revolution about the Sun, Earth's speed of rotation on its axis, the speed of our solar system orbiting the center of the Milky Way Galaxy, typical speeds of stars in the local solar neighborhood relative to us, the speeds of very distant galaxies relative to us
E) the speeds of very distant galaxies relative to us, typical speeds of stars in the local solar neighborhood relative to us, Earth's speed of rotation on its axis, Earth's speed of revolution about the Sun, the speed of our solar system orbiting the center of the Milky Way Galaxy
B
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The SI units for viscosity are N·s/m2 . Another commonly used unit for viscosity is the poise, where 10 poise = 1 N·s/m2 . The poise is a fairly large unit, and it is more common to use the centipoise. Which of the following is equal to the centipoise?
a. 10?3 N·s/m2 b. 10?2 N·s/m2 c. 10?1 N·s/m2 d. 102 N·s/m2
The hottest month for interior locations in the Northern Hemisphere is ______ while the coldest month is __________.
What will be an ideal response?
From the fact that virtually every galaxy is moving away from us and more distant galaxies are moving away from us at a faster rate than closer ones, we conclude that
A) the Milky Way Galaxy is expanding. B) we are located at the center of the universe. C) the farthest galaxies will eventually be moving faster than the speed of light. D) the universe is expanding. E) the universe is shrinking.
The volume holding 0.63 mole of an ideal gas is compressed to 1/4 of its original volume by a piston. At the same time the pressure of the gas triples. If the original absolute temperature of the gas was T, that is the new temperature after compression?
a. 4/3T b. 3/4T c. 0.63(3/4T) d. 0.63(4/3T)