Consisting entirely of atoms with absorption cross-section

Reference no: EM13535539

Consider a stellar atmosphere (consisting entirely of atoms with an absorption cross-section of s) where the number density, n, is NOT constant. Let n be linear with respect to depth:
n = n(x) = ax Where a is a constant

2. Derive an expression, containing a and s, for the distance over which light passing through the stellar atmosphere is reduced by one-half.

Reference no: EM13535539

Questions Cloud

A neutral sodium atom has an ionization potential : A neutral sodium atom has an ionization potential of ? = 5.1 eV. What is the temperature T of a gas in which the average particle kinetic energy is just barely sufficient to ionize a sodium atom in its ground state?

Evaluate the average velocity : The position of a particle moving along the x axis is given in centimeters by x = 9.75 + 3.50t 3, where t is in seconds. Calculate the average velocity

What is the speed of a free electron : What is the speed of a free electron that has just barely enough kinetic energy to collisionally ionize a sodium atom in its ground state? What is the speed of a free proton with just enough kinetic energy to collisionally ionize this atom?

Determine what is the speed of the vehicle : A travelling at a speed of 15 m/s slams on the breaks locking the wheels of his car, What is the speed of the vehicle after 2 seconds have passed

Consisting entirely of atoms with absorption cross-section : Consider a stellar atmosphere (consisting entirely of atoms with an absorption cross-section of s) where the number density, n, is NOT constant. Let n be linear with respect to depth:

What is the magnitude and direction of the third force : Three forces act on an object moving with constant velocity. One force of 40.0 N due west, the other force is 25 N due south. What is the magnitude and direction of the third force

Estimate the magnitude of the necessary lift force : A jet flying at 104 m/s banks to make a horizontal turn of radius 4000 m. The mass of the jet is 1.5 x 105. Calculate the magnitude of the necessary lift force

Estimate the final temperature and the value of n : One mole of dry air has an initial state of T = 293 K and p = 900 hPa. It undergoes a process in which its volume becomes four times its initial volume and its pressure decreases to 450 hPa. If air is considered an ideal gas and if the process obeys ..

Complete balance sheet and prepare a statement of changes : Complete the December 31, 2011 and 2010, balance sheets - prepare a statement of changes in retained earnings for the year ended December 31, 2011.

User Account

All Pages