Question and answer
A luminous shell that surrounds some hot stars is called a _____. A. red giant B. protostar C. supernova D. planetary nebula
A luminous shell that surrounds some hot stars is called a planetary nebula.
Expert answered|Masamune|Points 74531|
Question|Asked by amandameiners0
Asked 1/30/2018 11:26:46 AM
Updated 1/30/2018 1:30:55 PM
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Questions asked by amandameiners0
What type of model did Copernicus propose for the solar system? A. elliptical B. retrograde C. geocentric D. heliocentric
Weegy: Copernicus proposed the heliocentric model for the solar system. (More)
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Expert Answered
Updated 1/24/2018 9:29:00 AM
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The idea of epicycles was introduced by which astronomer as an attempt to explain the retrograde motion of the planets in the geocentric universe model? A. Brahe B. Galileo C. Ptolemy D. Copernicus
Weegy: The idea of epicycles was introduced by Ptolemy as an attempt to explain the retrograde motion of the planets in the geocentric universe model. (More)
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Updated 1/24/2018 9:31:30 AM
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When a planet travels in an elliptical orbit, the sum of the distances from the planet to each focus is A. greater when the planet is far from the Sun. B. greater when the planet is near the Sun. C. always the same no matter where the planet is in its orbit. D. double the length of the planet's farthest point from the Sun to its nearest point to the Sun.
Question
Updated 1/24/2018 9:28:38 AM
1 Answer/Comment
When a planet travels in an elliptical orbit, the sum of the distances from the planet to each focus is: always the same no matter where the planet is in its orbit.
Added 1/24/2018 9:28:38 AM
This answer has been confirmed as correct and helpful.
Which type of rock makes up most of the Moon's surface? A. basalt B. gneiss C. granite D. limestone
Weegy: Basalt type of rock makes up most of the Moon's surface. (More)
Question|Asked by amandameiners0
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Asked 1/25/2018 9:28:09 AM
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During a spring tide, which phases could the Moon be in? Select all that apply. A. full B. new C. first quarter D. third quarter
Weegy: Spring tide could happen during full moon and new moon. (More)
Question|Asked by amandameiners0
Expert Answered
Updated 1/31/2018 11:54:11 AM
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