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 that the distance from the Sun to the Earth is 1.5×10^11 m.
Homework Answers
Add Answer to:
The surface of the Sun has a temperature of 5500 ∘C. Treat the
sun as a...
The temperature of the surface of the Sun is 5500°C.
The temperature of the surface of the Sun is 5500°C.Part (a) What is the average kinetic energy, in joules, of hydrogen atoms on the surface of the Sun?Part (b) What is the average kinetic energy, in Joules, of helium atoms in a region of the solar corona where the temperature is 6.00 x 105 K?
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...
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun....
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun. This number rises to about 1386 W/m2 in the upper atmosphere (r 6.4 x 106 m) The sun is 1 AU (1.496 x 1011 m) away Over what area is the Sun's energy spread at the Earth's distance? How much power is the Sun releasing?
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter)...
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...
The surface temperature of the sun is about 5800 K. The radii of the earth and...
The surface temperature of the sun is about 5800 K. The radii of the earth and the sun are 6.40x106 m and 6.95x108 m, respectively. The earth is 1.49x1011 m from the sun. Calculate the blackbody temperature of the earth assuming the earth is in steady state with the power absorbed versus power emitted.
The average temperature of the surface of the Earth is approximately 14◦C. What would the steady-state...
The average temperature of the surface of the Earth is approximately 14◦C. What would the steady-state temperature of the Earth be if there were no greenhouse effect — i.e. if the emissivity of the earth was independent of wavelength? Give your answer in ◦C. Note that the radius of the Earth is 6.38 106 m, and the intensity of sunlight at the Earth’s location is 1366 W/m2. Hint, how much power from the sun would strike a plate with the...
Physics problem I need help with! The average temperature of the surface of the Earth is...
Physics problem I need help with!
The average temperature of the surface of the Earth is
approximately 14°C. What would the steady-state
temperature of the Earth be if there were no greenhouse effect —
i.e. if the emissivity of the earth was independent of wavelength?
Provide answer in °C. Note that the radius of the
Earth is 6.38×10^6 m, and the intensity of sunlight at the Earth’s
location is 1366 W/m^2. (Hint, how much power from the sun would
strike...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the ef- fect of absorption of infrared light emitted by the surface so as to make the surface temperature of the Earth higher than if it were airless. For comparison, consider a spherical object of radius r with no atmosphere at the same distance from the Sun as the...
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.
At our distance from the Sun, the intensity of solar radiation is 1370 W/m^2 . As...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m^2 . As discussed in class and in the textbook, the temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the effect of absorption of infrared radiation by the surface so as to make the surface temperature of the Earth higher than if it were airless. The average global surface temperature of the Earth is ~288 K. Calculate the surface...
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun. This number rises to about 1386 W/m2 in the upper atmosphere (r 6.4 x 106 m) The sun is 1 AU (1.496 x 1011 m) away Over what area is the Sun's energy spread at the Earth's distance? How much power is the Sun releasing?
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter)...
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...
Physics problem I need help with!
The average temperature of the surface of the Earth is
approximately 14°C. What would the steady-state
temperature of the Earth be if there were no greenhouse effect —
i.e. if the emissivity of the earth was independent of wavelength?
Provide answer in °C. Note that the radius of the
Earth is 6.38×10^6 m, and the intensity of sunlight at the Earth’s
location is 1366 W/m^2. (Hint, how much power from the sun would
strike...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the ef- fect of absorption of infrared light emitted by the surface so as to make the surface temperature of the Earth higher than if it were airless. For comparison, consider a spherical object of radius r with no atmosphere at the same distance from the Sun as the...
Most questions answered within 3 hours.
-
The time to complete a standardized exam is approximately normal
with a mean of 70 minutes...
asked 1 hour ago -
Two thousand randomly selected adults were asked whether or not
they have ever shopped on the...
asked 1 hour ago -
Estimate the diffusion coefficient for methyl phenyl sulfide in
water at 25 degrees Celcius.
asked 58 minutes ago -
10.g of a certain metal absorb 40. cal of heat and the temperature
is abserved to...
asked 1 hour ago -
How many milliliters of 0.0695 M Ca( OH)
2would be required to exactly neutralize 176 mL...
asked 2 hours ago -
A telephone survey uses a random digit dialing machine to call
subjects. The random digit dialing...
asked 2 hours ago -
How can having too little or too much of a certain
protein cause problems for an...
asked 4 hours ago -
Assume a muscle has a PCSA = 20 cm2 and Lo = 12 cm. Assume it...
asked 6 hours ago -
What is the yield to maturity of a ten-year, $1,000 bond with a
5.2% coupon rate...
asked 6 hours ago -
A mass m = 5 kg is tied on one end of a rope and is...
asked 6 hours ago -
The Average sales price of single-family houses in Charlotte is
$210,000 with a standard deviation of...
asked 6 hours ago -
Target Costing
Laser Impressions, Inc., manufactures color laser printers.
Model J20 presently sells for $225 and...
asked 6 hours ago