The greater the mass of a star, the ______________ it moves through its life cycle
Fill in the blank(s) with correct word
faster
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Your worldline is shown in red on this spacetime diagram. The diagonal orange line could represent the worldline of
A) a flashlight beam that you turned on 2 seconds ago. B) you, when you start running to your left. C) a person running backward away from you. D) a light beam that is shining on you.
Satellite Motion: If Earth had twice its present mass but it orbited at the same distance from the sun as it does now, its orbital period would be
A. 4 years. B. 3 years. C. 2 years. D. 1 year. E. 6 months.
When a light ray travels between any two points, the path it takes is the one that (Hint: Eliminate answers you know are wrong.)
A. covers the greatest distance. B. follows the greatest index of refraction. C. avoids travel in more than one medium. D. is the mean between the longest and the shortest paths. E. takes the least time.
When metals become ions, they tend to
a)share their valence electrons. b)gain more electrons in their valence shells. c) lose electrons from their valence shells. d) keep their valence electrons as they were, but add protons to their nuclei.