The Sun emits energy in the form of light at a rate of approximately 1026 w. This light originates from fusion reactions, which occur primarily in the core of the Sun, where the pressure and temperature are highest. Products from these fusion reactions differ in mass from the reactants by approximately 1%. Astronomers estimate that the Sun will run out of fuel in the core after approximately 1010 years. The mass of the Sun is approximately 1030 kg, but only the portion of the mass that is in its core can undergo fusion. Which of the following represents the approximate fraction of the Sun's mass in its core? Assume that there are 10 seconds in a year. A 0.1% 1% 10%

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The Sun emits energy in the form of light at a rate of approximately 1026 w. This light originates from fusion reactions, which occur primarily in the core
of the Sun, where the pressure and temperature are highest. Products from these fusion reactions differ in mass from the reactants by approximately
1%. Astronomers estimate that the Sun will run out of fuel in the core after approximately 1010 years. The mass of the Sun is approximately 1030 kg,
but only the portion of the mass that is in its core can undergo fusion. Which of the following represents the approximate fraction of the Sun's mass in its
core? Assume that there are 10' seconds in a year.
(A)
0.1%
1%
(C
10%
100%
Transcribed Image Text:The Sun emits energy in the form of light at a rate of approximately 1026 w. This light originates from fusion reactions, which occur primarily in the core of the Sun, where the pressure and temperature are highest. Products from these fusion reactions differ in mass from the reactants by approximately 1%. Astronomers estimate that the Sun will run out of fuel in the core after approximately 1010 years. The mass of the Sun is approximately 1030 kg, but only the portion of the mass that is in its core can undergo fusion. Which of the following represents the approximate fraction of the Sun's mass in its core? Assume that there are 10' seconds in a year. (A) 0.1% 1% (C 10% 100%
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