Section 1:
place an observation in the "supports the expanding universe" bin if it would pro...
Section 1:
place an observation in the "supports the expanding universe" bin if it would provide evidence that the universe is expanding.
section 2:
place an observation in the "contradicts the expanding universe" bin if it would provide evidence that would force us to reconsider the idea of an expanding universe.
section 3:
place an observation in the "neither supports nor contradicts" bin if it does not allow us to distinguish between a universe that is expanding and a universe that is not expanding
a) irregular galaxies outside the local group are moving towards us.
b) all galaxies in the coma cluster of galaxies have redshifted spectra
c) galaxy speeds are faster in summer than in winter
d) the andromeda galaxy, a member of our local group, is moving towards us
e) the measured rate of expansion is the same in all directions
f) galaxies 200 million light-years away move away from us twice as fast as galaxies 100 million light-years away
g) spiral galaxies move away from us 10% faster than elliptical galaxies at the same distances
Answers: 3
Geography, 22.06.2019 17:40
Which factors add to the greenhouse effect and are caused by human activities?
Answers: 1
Geography, 23.06.2019 20:20
Which of the following statements best describes the quantity theory of inflation? a.inflation occurs because production cost rise and this cost increase is passed on to consumers in the form of higher prices b. inflation occurs because there is too much money in the economy c. inflation occurs because demand of good and services exceeds existing supplies d. none of these
Answers: 1
Geography, 24.06.2019 02:30
What is the correct order (starting from the surface) of warts layers
Answers: 2
Geography, 24.06.2019 10:30
Which of the following statements does not describe shi huangdi? a. shi huangdi was the first emperor of the qin dynasty. b. shihuangdi wrote the lunyu, the most important text in confucianism. c. shihuangdi conquered city-states to unite china. d. shihuangdi began the process of building the great wall of china.
Answers: 1
Mathematics, 14.04.2020 16:31
Mathematics, 14.04.2020 16:31