The amount of radiant power produced by the sun is approximately 3.9 × 1026 W. Assuming...
The amount of radiant power produced by the sun is approximately 3.9 × 1026 W. Assuming the sun to be a perfect blackbody sphere with a radius of 6.96 × 108 m, find its surface temperature (in kelvins).
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The amount of radiant power produced by the sun is approximately
3.9 × 1026 W. Assuming...
The sun emits electromagnetic radiation with a power of 4.0 x 1026 W. The earth’s average...
The sun emits electromagnetic radiation with a power of 4.0 x 1026 W. The earth’s average distance from the sun is 1.50 x 1011 m. The earth’s radius is 6.37 x 106 m. What total radiant energy does the earth receive from the sun over the course of a single day? (Answer: 1.6 x 1022 J)
80. The sun is a sphere with a radius of 6.96 X 10a m and an...
80. The sun is a sphere with a radius of 6.96 X 10a m and an av- erage surface temperature of 5800 K. Determine the amount by which the sun's thermal radiation increases the entropy of the entire universe each second. Assume that the sun is a perfect blackbody, and that the average temperature of the rest of the universe is 2.73 K. Do not con- sider the thermal radiation absorbed by the sun from the rest of the universe.
The surface of the Sun has a temperature of 5500 ∘C. Treat the sun as a...
The surface of the Sun has a temperature of 5500 ∘C. Treat the sun as a perfect blackbody with an emissivity of 1.0 and a radius of 7.0*10^8 m. Given; the temperature of space is 3.0K and the power that it takes for the sun to radiate into space is 3.9 * 10^26 W. The solar constant is the number of watts of sunlight power falling on a square meter of the Earth's upper atmosphere. Calculate the solar constant given...
Calculate the average power that the surface of Earth facing the Sun receives from the Sun....
Calculate the average power that the surface of Earth facing the Sun receives from the Sun. Assuming that the Earth is a blackbody and radiates the same amount of power that it absorbs from the Sun, calculate the average surface temperature of the Earth. Does your answer make sense compared to your experience? The Sun’s surface temperature is 5800 K, its radius is 6.96x108 m, the distance between Earth and the Sun is 1.5x1011 m, and the radius of the...
The Sun shines with a blackbody temperature of 5780 K and a total power output of 3.8 x 1026 w. The Sun has been doing this for 4.5 x 10 yr, during which time the surface temperature has increased by...
The Sun shines with a blackbody temperature of 5780 K and a total power output of 3.8 x 1026 w. The Sun has been doing this for 4.5 x 10 yr, during which time the surface temperature has increased by a few percent and the luminosity by 20%, ie. they have remained roughly constant. (a) (5 marks) Use the heat-flow formula for entropy change to calculate the total entropy in all the sunlight the Sun has ever emitted. (b) (3...
Sirius B is a white star that has a surface temperature (in kelvins) that is four...
Sirius B is a white star that has a surface temperature (in kelvins) that is four times that of our sun. Sirius B radiates only 0.040 times the power radiated by the sun. Our sun has a radius of 6.96 108 m. Assuming that Sirius B has the same emissivity as the sun, find the radius of Sirius B. RsB =
the average amount of solar power reaching the earth is approximately 1.4 kW/m2. The radius of...
the average amount of solar power reaching the earth is
approximately 1.4 kW/m2. The radius of the sun is 6.95*108
m.
The average amount of solar power reaching the earth is approximately 1 .4 kW/m'. The radius of the x108 m and the distance between the earth and the sun is 1.5x1011 m. The power radiated the sun is 6.25x10' W/m2. Assume the source of energy for the sun is the fusion reaction 4HHe +2(B+2v+ energy Estimate how much hydrogen...
1. The "surface" of the Sun is not sharp boundaries like the surface of the Earth....
1. The "surface" of the Sun is not sharp boundaries like the surface of the Earth. Most of the radiation that the Sun emits is in thermal equilibrium with the hot gases that make up the Sun's outer layers. Without too much error, we can treat sunlight as blackbody radiation. The total power radiated by the Sun is 3.87×1026W. Given the radius of the Sun is 6.96×108m, what is the surface temperature of the Sun? Suppose the temperature of the...
The sun has a power output of 3.83 × 1026 W. Installed on your roof is...
The sun has a power output of 3.83 × 1026 W. Installed on your roof is a solar panel that has a surface area of 1.40 m2 . How many photons from the Sun reach the panel? Assume that the average value of the wavelength of light is 580 nm. Assume also that the sun emits photons equally in all directions and that photons are not scattered or absorbed by atmosphere on their way to the panel. Use the average...
The surface of the sun has a temperature of approximately 5800 K. To good approximation we...
The surface of the sun has a temperature of approximately 5800 K. To good approximation we can treat it as a blackbody. (a) What is the peak-intensity wavelength λm? (b) What is the total radiated power per unit area? (c) Find the power per unit area radiated from the surface of the sun in the wavelength range 600.0 to 605.0 nm.
80. The sun is a sphere with a radius of 6.96 X 10a m and an av- erage surface temperature of 5800 K. Determine the amount by which the sun's thermal radiation increases the entropy of the entire universe each second. Assume that the sun is a perfect blackbody, and that the average temperature of the rest of the universe is 2.73 K. Do not con- sider the thermal radiation absorbed by the sun from the rest of the universe.
The Sun shines with a blackbody temperature of 5780 K and a total power output of 3.8 x 1026 w. The Sun has been doing this for 4.5 x 10 yr, during which time the surface temperature has increased by a few percent and the luminosity by 20%, ie. they have remained roughly constant. (a) (5 marks) Use the heat-flow formula for entropy change to calculate the total entropy in all the sunlight the Sun has ever emitted. (b) (3...
Sirius B is a white star that has a surface temperature (in kelvins) that is four times that of our sun. Sirius B radiates only 0.040 times the power radiated by the sun. Our sun has a radius of 6.96 108 m. Assuming that Sirius B has the same emissivity as the sun, find the radius of Sirius B. RsB =
the average amount of solar power reaching the earth is
approximately 1.4 kW/m2. The radius of the sun is 6.95*108
m.
The average amount of solar power reaching the earth is approximately 1 .4 kW/m'. The radius of the x108 m and the distance between the earth and the sun is 1.5x1011 m. The power radiated the sun is 6.25x10' W/m2. Assume the source of energy for the sun is the fusion reaction 4HHe +2(B+2v+ energy Estimate how much hydrogen...
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