Compute its steady-state temperature

Reference no: EM13286513

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 effect of absorption of infrared light emitted by the surface so as to make the surface tem- perature 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 Earth. Assume its emissivity is the same for all kinds of electromagnetic radiation and its temperature is uniform over its surface.

(a) Explain why the projected area over which it absorbs sunlight is ?r2 and the surface area over which it radiates is 4?r2.

(b) Compute its steady-state temperature. Is it chilly?

Reference no: EM13286513

Questions Cloud

Find the magnitude of the tension in the horizontal string : A small positively charged sphere of mass 4.68 g and charge +72 micro C is suspended horizontally in static equilibrium, find the magnitude of the tension in the horizontal string

What would you expect the stocks price to be in five years : Mitech Corp's stock price has been growing at approximately 8% for several years, and is now $30. Based on past growth rate performance, what would you expect the stocks price to be in five years?

What is the most should be willing to pay for a share : He thinks the price will be about $75 when he sells. What is the most should be willing to pay for a share of Denhart if he can earn 10% on investments of similar risk?

State what is the molar mass of the gas : An experiment shows that a 248 ml gas sample has a mass of 0.435 g at a pressure of 747 mm Hg and a temperature of 26 c. What is the molar mass of the gas?

Compute its steady-state temperature : At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. Compute its steady-state temperature

Write a vhdl module to implement a circuit to generate clock : write a VHDL module to implement a circuit that can generate a clock signal whose time period is a multiple of the input clock. A control signal F determines the multiplying factor. If F=0 the output signal has a time period twice that of the inpu..

Explain what is the 1,3-diaxial interaction : The 1,3-diaxial interaction energy between H and a lone pair is negligible (~ 0 kcal/mol). What is the 1,3-diaxial interaction (in kcal/mol) between a CH3 and a p orbital

Design propotional controller for system with transfer funcn : design a propotional controller for a system with the transfer function G(z)=K/(z-0.4) to have a damping ratio of 0.7

Compute the speedboats final speed : A speedboat moves on a lake with initial velocity vector v1,x = 9.69 m/s and v1,y = -2.99 m/s, Find the speedboat's final speed

User Account

All Pages