If you live at a location on the Earth’s northern hemisphere, when will the longest day of the year be? a.vernal equinox b.winter solstice c.summer equinox d.summer solstice e.winter equinox The history of the universe described by the Big Bang theory is separated into different eras. During which era was the predominant temperature of the Universe about 1 million Kelvin? a.The Plank Era

Astronomy
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ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Chapter19: Celestial Distances
Section: Chapter Questions
Problem 33E: Astronomers are always making comparisons between measurements in astronomy and something that might...
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If you live at a location on the Earth’s northern hemisphere, when will the longest day of the year be?
a.vernal equinox
b.winter solstice
c.summer equinox
d.summer solstice
e.winter equinox
The history of the universe described by the Big Bang theory is separated into different eras. During which era was the predominant temperature of the Universe about 1 million Kelvin?
a.The Plank Era
b.The GUT Era
c.The Electroweak Era
d.The Era of Nuclei
e.The Era of Atoms
Some planets have very strong magnetic fields. What features must a planet have to cause this?
a.both rapid rotation and a conducting liquid core
b.only a rapid rotation
c.only a liquid conducting core
d.both a rapid rotation and a solid metallic core
e.only a metallic core
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