From the diameter and effective surface temperature of the sun, estimate the rate at which it...

From the diameter and effective surface temperature of the sun, estimate the rate at which it emits energy. What fraction of this emitted energy is intercepted by the earth? Estimate the solar constant, given the mean earth-sun distance.

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samet mamat answered 2 years ago

Entropy and the Sun The surface of the Sun has a temperature of 5500∘C and the...

Entropy and the Sun The surface of the Sun has a temperature of 5500∘C and the temperature of deep space is 3.0K.Find the entropy increase produced by the Sun in one day, given that it radiates heat at the rate of 3.80 ×1026W . Part B How much work could have been done if this heat had been used to run an ideal heat engine?

Suppose the surface temperature of the Sun was 12,000 K, rather than 6000 K. a) How...

Suppose the surface temperature of the Sun was 12,000 K, rather than 6000 K. a) How much more thermal radiation would the Sun emit? b) What would happen to the Sun's wavelength of peak emission? Do you think it would still be possible to have life on Earth? Explain.

How to estimate land surface temperature using landsat 8 in arcgis?

At this rate how long will the sun last? To estimate the age based on this...

At this rate how long will the sun last? To estimate the age based on this you need to know: Percent of sun currently hydrogen – the sun is about 73% hydrogen by mass 6.5 x 1014 J/kg is released converting hydrogen to helium (You looked up the mass of the sun in kilogram You looked up the power of the sun in Watts (Joules/second) Using these four factors you can come up with the expected life of the sun)

A ribbed cylinder of outside diameter 0.6m is at a surface temperature of 260℃ in large surroundings at 20℃

A ribbed cylinder of outside diameter 0.6m is at a surface temperature of 260℃ in large surroundings at 20℃. Calculate the heat transfer coefficient for radiation, and the total heat loss rate due to radiation and convection. The cylinder is 0.9m long and is made of cast iron of emissivity 0.8. The surface area of the ribbed cylinder is 5 m2. and the heat transfer coefficient for convection may be taken as 8.8 W/m2K. Neglect end effects.

A horizontal tube of 53-mm outer diameter, with a surface temperature of 34 degrees Celsius, is...

A horizontal tube of 53-mm outer diameter, with a surface temperature of 34 degrees Celsius, is exposed to steam at 0.22 bar. Estimate the condensation rate and heat transfer rate per unit length of the tube.

how to find surface temperature of the flat plate which is subjected to air flow from...

how to find surface temperature of the flat plate which is subjected to air flow from one side and constant temperature on the other side using Ansys fluent ?

From the solar constant and the average distance between the sun and the earth, estimate (a)...

From the solar constant and the average distance between the sun and the earth, estimate (a) the total power emitted by the sun, in megawatts, and (b) the mass loss of the sun, in tons per day

The sun is 150,000,000 km from earth; its diameter is 1,400,000 km.For a science project on...

The sun is 150,000,000 km from earth; its diameter is 1,400,000 km.For a science project on solar power, a student uses a 24-cm-diameter converging mirror with a focal length of 47 cm to focus sunlight onto an object. This casts an image of the sun on the object. For the most intense heat, the image of the sun should be in focus. a. Where should the object be placed? b. What is the diameter of the image? c. The intensity...

A composite series wall has an inside surface temperature of 1600F and outside surface temperature of...

A composite series wall has an inside surface temperature of 1600F and outside surface temperature of 500F. If it consists of 3.5 in. of mineral wool, 0.05 in. of plaster on the outside, and 0.75 in. of cork board on the inside, determine the heat loss in a 120 square foot of wall.

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