What evidence do we have of geological activity on asteroids in the past?
What will be an ideal response?
Processed meteorites and large asteroids had enough heat to melt and undergo differentiation. The processed meteorites show that some were volcanically in their early histories.
Physics & Space Science
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You can use YouTube to embed or link to ______ media.
A. music B. photography C. video D. audio
Physics & Space Science
The amplitude of a wave is 1 meter. The crest-to-trough distance of the wave is
A) 0.5 m. B) 1 m. C) 2 m. D) none of the above
Physics & Space Science
Control is maintained in a nuclear reactor by control rods that
A) absorb excess neutrons. B) emit fast neutrons. C) both of these D) neither of these
Physics & Space Science
Given that two forces of 10 N and 15 N act horizontally on an object, the net force must
A) be 5 N. B) be 25 N. C) be either 5 N or 25 N. D) lie between 0 N and 25 N.
Physics & Space Science