Above is an image of a supergranule
a. True
b. False
True
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Stars are born from the interstellar medium, and aging or dying stars return gas and dust back into the interstellar medium
a. True b. False Indicate whether the statement is true or false
How much would a paperclip made of neutron star material weigh on Earth?
A) about the same as an actual paperclip B) a few tons C) about as much as Mt. Everest D) about as much as the Moon E) about as much as the Sun
A golf ball is thrown at and bounces backward from a massive bowling ball that is initially at rest. After the collision, compared to the golf ball, the bowling ball has more
A) momentum, but less kinetic energy. B) kinetic energy, but less momentum. C) momentum and more kinetic energy. D) need more information
The Sun has been on the main sequence
a. for about 10 million years. b. for about 5 billion years. c. forever. d. for about 14 billion years.