QUESTION:
I am doing a project with fluid mechanics, to determine how much 
energy a wind mill would make on Mars. However, to complete the 
formula(Pavail=1/2mV3)I need
the density of the Martian atmosphere. Please do not send me the pressure.
Unless you tell me what the temp was when you took the reading, so I can
convert it.

ANSWER from Bob Haberle on November 23, 1999:
The average density on the surface of Mars is about 0.015 Kilograms per
cubic meter. Be sure to use consistent units when you make the calculation
(use winds given in meters per second).