An astronomical unit (AU) is equal to the average distance from the Earth to the sun, about 92.9 × 106 mi. A parsec (pc) is the distance at which 1 AU would subtend an angle of 1 second of arc. How many parsecs in an AU?
What will be an ideal response?
4.83 × 10-6 pc
Physics & Space Science
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Indicate whether the statement is true or false
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The Milky Way and the Milky Way Galaxy are the same thing
a. True b. False Indicate whether the statement is true or false
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A 60-W and a 100-W light bulb are connected in parallel to a 120-V outlet. Which bulb draws more current?
A) 60-W bulb B) 100-W bulb C) both the same.
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Give an estimate of the number of steps in the stairway of a ten-story building.
A. 101 B. 102 C. 103 D. 104
Physics & Space Science