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A star's absolute magnitude is equivalent to the apparent magnitude that a star would have at a distance of _____ parsecs from the Sun. A. 1 B. 10 C. 100 D. 1,000
Weegy: A star's absolute magnitude is equivalent to the apparent magnitude that a star would have at a distance of B. 10 parsecs from the Sun. Therefore the answer is B. 10 (More)
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Asked 3/27/2013 11:52:26 PM
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If you moved closer and closer to a star, how would its apparent magnitude change? A. It would increase. B. It would decrease. C. It would remain the same.
Weegy: A. It would increase. User: The stars with the coolest surface temperature fall into which spectral class? A. A B. B C. G D. K E. M F. O Weegy: The stars with the coolest surface temperature fall into E. M class. User: Which statement about luminosity is NOT true? A. It is commonly measured in watts. B. It is valued at 1 for our Sun. C. It stands for the total energy output of a star. D. It increases from top to bottom ... (More)
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Asked 3/27/2013 11:59:21 PM
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Which spectral class does the Sun belong to? A. A B. B C. G D. K E. M F. O User: The Sun's surface temperature is closest to _____. A. 3,500 K B. 6,000 K C. 11,000 K D. 30,000 K
Weegy: B. 6,000. The Sun's surface temperature. User: If you moved closer and closer to a star, how would its absolute magnitude change? A. It would increase. B. It would decrease. C. It would remain the same. Weegy: If you moved closer and closer to a star, its absolute magnitude would C. remain the same. (More)
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Asked 3/27/2013 11:55:49 PM
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Which of these is a type of matter that rarely interacts with other matter and is created in some nuclear fusion reactions within stars? A. photon B. positron C. neutrino D. helium-4
Weegy: B. positron User: What exists just before nuclear fusion begins in the core of a ball of gas in space? A. a star B. a nebula C. a protostar D. a molecular cloud Weegy: A. star User: In a nuclear fusion reaction, the mass of the reactants is _____ the mass of the products. A. less than B. more than C. the same as Weegy: In nuclear fusion, a fraction of the mass is converted to energy, so the mass of the products is less ... (More)
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Asked 3/28/2013 4:01:39 PM
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What keeps a red giant from collapsing under its own gravity? A. dark energy B. tightly packed neutrons C. tightly packed electrons D. the force provided by nuclear fusion
Weegy: A. gravity User: Which of the following lists the stars in order from greatest density to least density? A. white dwarf, neutron star, main sequence star, giant B. giant, main sequence star, white dwarf, neutron star C. white dwarf, neutron star, giant, main sequence star D. neutron star, white dwarf, main sequence star, giant User: A typical neutron star has more mass than _____ and is about the same size as _____. A. a city, ... (More)
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Asked 3/28/2013 7:24:20 PM
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