The impact of meteorites on the Moon has caused
a. craters only.
b. rays only.
c. rills only.
d. both rays and craters.
d
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What is meant by the Astronomical Unit?
What will be an ideal response?
In the Northern Hemisphere, cyclones rotate ________; whereas an anticyclone rotates ________
A) counterclockwise around a low pressure center; clockwise around a high pressure center B) clockwise around a low pressure center; counterclockwise around a high pressure center C) counterclockwise around a high pressure center; clockwise around a low pressure center
The energy released when a star explodes in a supernova can be more than the nuclear fusion energy produced by the same star throughout its entire lifetime.
Answer the following statement true (T) or false (F)
Air flows through a 1 cm diameter tube at 8 m/s. The air is at 40ºC and the tube is 100ºC. If the tube is 3.5 m long determine, a) the entrance length for developed flow and b) heat transfer to the air.
What will be an ideal response?