Astronomers use _______________ to express distance from the Sun
Fill in the blank(s) with correct word
astronomical units
AU
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The center of our galaxy lies in the direction of the constellation of
a. Ursa Minor. b. Ursa Major. c. Sagittarius. d. Orion. e. Monoceros.
The amount of heat that flows through a rod whose ends are held at different temperatures is proportional to the area of the rod
Indicate whether the statement is true or false
A square loop of wire has a current going around it. The magnetic field from the current on each side of the loop results in a magnetic force on the wire on the opposite side. Each resulting magnetic force on the opposite side wire
a. pushes inward on the loop. b. is actually zero since a current cannot push on itself. c. depends on whether the current is clockwise of counterclockwise. d. pushes outward on the loop.
Where does most rainfall on Earth finally end up before becoming rain again?
A) underground B) in lakes C) in the oceans D) on the ground surface