The Expanding Universe Answers
Which statements explain current theories about dark energy and dark matter? Check all that apply.Space that appears empty actually contains dark energy and dark matter.Dark matter does not emit electromagnetic radiation.Scientists believe dark energy will cause the universe to collapse inward to a single point.Scientists theorize that dark energy is causing the expansion of the universe to accelerate.Dark matter includes all of the dust, ice, and debris that scientists observe in black holes.
Which hypothesis is most supported by astronomers?
Which statements describe processes involved in the accretion of planetesimals and protoplanets? Check all that apply.Both involve the melting of solid materials in the nebula.Both involve the formation of solid particles from nebular materials.Both involve the work of the gravitational push on nebular materials.Both involve the trapping of gases and the clumping of masses of matter.Both involve the growing of gas grains with the addition of atoms and molecules.
Which of the following values of American society were attacked by beat writers?
The graph of an exponential function has .
The parent function y = 0.5x is across its domain because its base, b, is such that .
y = 3−x
a = [___] b = [___] c = [___]
1/16
y = 0y = –3y = –5
Hubble’s law states that galaxies located farthest from the center of the universe [___] than those closest to the center.
12 3
How did postwar writers use their writing to reject values characteristic of this time period?
y = −3x
a = [___] b = [___] c = [___]
1/256
1 2 3
When b > 1, as x grows in the negative direction, y . When 0 < b < 1, as x grows in the negative direction, y .
d = [___] e = [___] f = [___]
1
d = [___] e = [___] f = [___]
4/9
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