The Moon moves ________ relative to the background stars over the course of an evening.
A. northward
B. eastward
C. westward
D. southward
E. The Moon does not move relative to the background stars.
Answer: B
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Olympus Mons is ________
A) a huge volcano on Venus B) a huge volcano on Mars C) a great canyon on Mars D) a large lava plain on the Moon
The temperature of the Sun's core is about 20,000 K
Indicate whether the statement is true or false
A river has a steady speed of 0.30 m/s. A student swims downstream a distance of 1.2 km and returns to the starting point. If the student swims with respect to the water at a constant speed and the downstream portion of the swim requires 20 minutes, how much time is required for the entire swim?
a. 50 minutes b. 80 minutes c. 90 minutes d. 70 minutes e. 60 minutes
Planets with larger orbital radii have longer orbital periods because they both have a longer distance to travel in each orbit and move more slowly
Indicate whether the statement is true or false