Physics, 16.03.2020 18:49, maggie123456751
We observe a glowing cloud of gas in space with a spectroscope. We note that many of the familiar lines of hydrogen that we know on Earth seem to be in a different place. They are shifted toward the blue or violet end of the spectrum compared to their positions in the spectrum of glowing hydrogen gas on Earth. From this we can conclude that:
A. the cloud is much hotter than hydrogen on Earth
B. the cloud is moving away from us
C . the cloud is moving toward us
D. the cloud is much cooler than hydrogen on Earth
Answers: 2
Physics, 22.06.2019 08:30, herchellann302
A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.
Answers: 3
Physics, 23.06.2019 02:00, Karate5650
Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning
Answers: 2
Physics, 23.06.2019 07:30, dulcejuarez2005
Suppose that the half-life of an element is 1000 years. how many half-lives will it take before one-eighth of the original sample remains? 8 125 12.5 3
Answers: 2
We observe a glowing cloud of gas in space with a spectroscope. We note that many of the familiar li...
Mathematics, 05.02.2021 01:00
Mathematics, 05.02.2021 01:00
Spanish, 05.02.2021 01:00
English, 05.02.2021 01:00
Physics, 05.02.2021 01:00