Why is nearly all of the Sun's energy produced in the inner 1.5% of its volume?
Q: A “shooting star” is usually a grain of sand from outer space that burns up and gives off light as…
A:
Q: Why do sunspots appear dark? a. Regions of the photosphere are obscured by material in the…
A: The solar spots are mostly cooler places than the surroundings
Q: Which of the following is least reasonable regarding energy production in the Sun? Group of answer…
A: The statement that is least reasonable regarding energy production in the Sun is:"Although the Sun…
Q: Assume that Hydrogen comprises 78% of the Sun’s mass. How much mass is this?
A: The original mass of the sun is,
Q: The total Sun's energy output for every second can power Earth in modern time hundreds of years…
A: The earth formed at the same time of when the solar system formed. Our solar system formed at around…
Q: A typical chemical reaction such as an explosive combustion releases about 5 MJ of energy per kg…
A: Given: Energy released per kg of fuel is ER =5 MJ/kg. It is known that the total power radiated…
Q: The Sun is currently about 4.4 billion years old. How much longer does it have before it runs out of…
A: The Sun is currently about 4.4 billion years old. The age of sun is about 10 billion years. Thus,…
Q: What is the ultimate source of energy that makes the sun shine ?
A: The sun's energy comes from thermonuclear fusion reactions. Due to the Sun's strong gravitational…
Q: The radius of the sun is approximately 700,000 kilometers. What is the volume of the sun
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Q: Why is infrared radiation emitted from earth A) the earth cannot absorb or emit infrared radiation…
A: (A)The earth cannot absorb or emit infrared radiation: This option is incorrect. The Earth can both…
Q: Using the concept of hydrostatic equilibrium, explain why the Sun does not collapse under the weight…
A: Hydrostatic equilibrium is the balance between the gravitational force and the pressure gradient…
Q: The visible surface of the sun is the a. corona b. chromosphere c. photosphere
A: The visible surface of the sun is the Photosphere. Explanation :…
Q: Rank the layers of the Sun based on their average temperature, from hottest to coolest. A) Corona B)…
A: The Sun can be divided into six layers.
Q: In a typical solar oscillation, the Sun’s surface moves up or down with a speed of 0.1m/s . If you…
A: Given data *The Sun’s surface moves up or down with a speed is v = 0.1m/s *The given wavelength is…
Q: If a sunspot has a temperature of 4,270 K and the average solar photosphere has a temperature of…
A: The expression of Stefan-Boltzmann law of energy radiation is E=σT4Jsm2…
Q: G
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Q: Which is a good estimate for the amount of solar irradiance hitting the Earth’s surface on a clear…
A: On a clear day, when the Sun is directly overhead, the radiation intensity that is hitting the…
Q: The US had 264 billion barrels of oil in reserve at the end of 2019. Us annual energy consumption is…
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Q: Even if the Earth's orbit were circular, we would still have seasons. The reason is that…
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Q: zone
A: To choose : The layer of sun in which the nuclear fusion takes place.
Q: According to the Stefan-Boltzmann law, how much energy is radiated into space per unit time by each…
A: A blackbody absorbs all the radiation that falls on it and then re-emits it. Stars can be…
Q: Why does the Sun not collapse under its enormous weight? a) The Sun is about 4.6 billion years old.…
A: The Sun does not collapse under its enormous weight. This is because of hydrostatic equilibrium. In…
Q: how many times more energy is emitted in 1 second from a square meter of the photosphere compared to…
A: According to Stephen Boltzmann law E = σT4 (J/s/m2) where σ is a proportionality constant equal to…
Q: Meridional is derived from meridian. Look up the definition of meridian; what is the direction of…
A: Meridian are the imaginary longitudinal lines across the earth from north pole to the south pole
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- The Sun has a radius of 6.955×105 km and a mass of 1.989×1030 kg. What is the density of the Sun? Answer: ____ kg/m3 How does this compare to the density of Earth (5500 kg/m3)? Answer: ____ times the density of EarthHow hot is the sun?What evidence can you give that the corona has a very high temperature?