The Sun is about how far from Earth?
A. 93,000,000 km
B. 380,000 km
C. 150,000,000 km
D. one light-year
Answer: C
Physics & Space Science
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What will be an ideal response?
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Angular and Linear Quantities: A child is riding a merry-go-round that is turning at 7.18 rpm. If the child is standing 4.65 m from the center of the merry-go-round, how fast is the child moving?
A. 5.64 m/s B. 3.50 m/s C. 0.556 m/s D. 1.75 m/s E. 1.80 m/s
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Earth has a natural greenhouse effect, principally due to water vapor.
Indicate whether the statement is true or false
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If the dark nebula are really dark, how do we know they are there?
What will be an ideal response?
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