The intensity of a sunspot is found to be 3 times smaller than the intensity emitted by the solar surface. What is the approximate temperature of this sunspot if the temperature of the solar surface is 5800 K?
a. 4400 K
b. 470,000 K
c. 1900 K
d. 7600 K
e. 1400 K
a
Physics & Space Science
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Name four ways that the interstellar medium reveals its presence
What will be an ideal response?
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A star on the ____________________ generates enough energy from nuclear fusion to halt gravitational collapse
Fill in the blank(s) with correct word
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The distance from the center of a Ferris wheel to a passenger seat is 12 m. What centripetal acceleration does a passenger experience when the wheel's angular speed is 0.50 rad/s?
a. 17 m/s2 b. 9.0 m/s2 c. 3.0 m/s2 d. 6.0 m/s2
Physics & Space Science