Metals are relatively more abundant in
A) old stars.
B) new stars.
C) neither in particular
Answer: B
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Measuring the Doppler shift of material at various distances from the center of a galaxy can be used to construct a(n) ____________________ for that galaxy
Fill in the blank(s) with correct word
The Great Red Spot is a storm that has been present in Jupiter's atmosphere for over 300 years
a. True b. False Indicate whether the statement is true or false
We know that Earth has water. However, according to our theory of solar system formation, the inner solar system was too hot for hydrogen compounds like water to condense. What do we conclude?
A) Water arrived on Earth at a time when it rained throughout the inner solar system. B) Earth's water likely was brought here by asteroids or comets that formed beyond the frost line. C) Our theory of solar system formation will need modification because it is unable to account for the existence of water on Earth. D) Earth's water probably originated through chemical reactions among the rock and metal of Earth's interior.
A simple pendulum, with a 4.4 kg mass and length 75. cm, is released from rest at an angle of 50.°
(a) To what height does the mass swing on the other side? (b) What is the speed of the mass at the bottom of the swing?