What is the primary form of evidence that has led astronomers to conclude that the expansion of the universe is accelerating?
a) observations of the speeds of individual galaxies in clusters
b) measurements of the rotation curve for the universe
c) measurements of how galaxy speeds away from the milky way have increased during the past century
d) observations of white dwarf supernovae
Answers: 1
Physics, 22.06.2019 09:00, keshho
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
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Physics, 22.06.2019 16:20, punkieladie
What organization and environment is described above?
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Physics, 22.06.2019 19:30, emma8292
Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f
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What is the primary form of evidence that has led astronomers to conclude that the expansion of the...
Mathematics, 23.06.2019 23:40