How would the geometry of a Universe with ?o greater than 1 differ from one with ?o less than 1?
What will be an ideal response?
If ?o is greater than 1 the geometry of space is positive and could be likened to the surface of a sphere. If ?o is less than 1, the geometry is negative and space is saddle-shaped.
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The most important quantity necessary for life to form appears to be the existence of ____________________ on the surface of the planet
Fill in the blank(s) with correct word
Based on inventoried matter in the universe, including dark matter known to exist in galaxies and clusters, the actual density of the universe is what fraction of the critical density?
A) 1 percent B) 10 percent C) 26 percent D) 74 percent E) 100 percent
What is the average power dissipation in an RLC series circuit in which R = 177 ?, L = 0.060 H, and C = 8.65 µF driven at resonance by a 163-V (rms) source?
a. 150 W b. 138 W c. 147 W d. 144 W e. 1 370 W
An explorer walks into a lab in a science building. She has a compass in her hand and finds that the south pole of her compass points toward the room's east wall when she is nearer that wall and toward the west wall when she is nearer that wall. You could explain this if magnetized metal had been installed in the east and west walls with north poles pointing into the room. If no magnetic material
was installed in the north or south walls of the room, she would expect that a. the south pole of the compass would tend to point toward those walls. b. the north pole of the compass would tend to point toward those walls. c. the compass needle would not point in any particular direction. d. the north pole of the compass needle would tend to point toward the centers of those walls, but the south pole would tend to point toward the sides of those walls. e. the south pole of the compass needle would tend to point toward the centers of those walls, but the north pole would tend to point toward the sides of those walls.