Long canyons on the lunar surface are called ________.

A. rilles
B. rifts
C. maria
D. rays


Answer: A

Physics & Space Science

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A 25-mH inductor is connected in series with a 20-? resistor through a 15-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the current when t = 2.0 ms?

A) 0.40 A B) 0.50 A C) 0.60 A D) 0.70 A E) 0.80 A

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The ozone layer blocks much of the Sun's visible radiation

Indicate whether the statement is true or false

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Which is the most common state of matter in the universe?

a. solid b. liquid c. gas d. plasma e. superfluid

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Define work in terms of applied force and distance

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