The impact of meteorites on the Moon has caused

a. craters only.
b. rays only.
c. rills only.
d. both rays and craters.


d

Physics & Space Science

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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?

Physics & Space Science

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)

Physics & Space Science

What is meant by the Astronomical Unit?

What will be an ideal response?

Physics & Space Science

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

Physics & Space Science