What type of meteorite is the most abundant? Most easily found? Why the difference?
What will be an ideal response?
Just as the S asteroids are most common, so stony meteorites are also abundant. But they blend in with similar surface rocks on Earth, and weather quickly as well. Iron meteorites are very durable, and much denser and often magnetic, which makes finding them easier in most cases.
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No matter where you live on Earth, the Sun always rises and sets each day
Indicate whether the statement is true or false
In order to simulate weightlessness for astronauts in training, they are flown in a vertical circle. If the passengers are to experience weightlessness, how fast should an airplane be moving at the top of a vertical circle with a radius of 2.50 km?
A) 157 m/s B) 314 m/s C) 78.5 m/s D) 255 m/s E) 510 m/s
Entropy is best defined as
A) the capacity to do work. B) energy that is due to its temperature. C) energy that is due to chemical structure. D) microscopic disorganization. E) microscopic organization.
Most earthquake damage is caused by
a. tsunamis. b. surface waves. c. P waves. d. S waves.