Recent content by Matt766

That angle that you found is the angle of incidence in the n3 medium. I think the question asks you for θ1, which is the incidence angle in the n1 medium. If you use Snells law to find θ1, that might be what you're looking for.

Homework Statement Treat the atmosphere as an ideal gas with a uniform temperature of 200 K. Find the density at 20 km. R= 260 N*m/(kg*k) g= 3.92 m/s^2 rho(0)= 0.015 kg/m^3 Homework Equations P=rho*R*T dp/dz= -rho*gThe Attempt at a Solution I found the pressure at ground level using...

I made the tank pressure into an absolute pressure and corrected the volume for the cubic feet. For some reason I added 14.7 to the volume? Thanks haha (V)*(3,014.7 lb/in^2) = (86,400 in^3)*(14.7 lb/in^2) (539.7 deg R) (518.7 deg R) V=438.4 in^3.

Sure. The underline is for division, and the temperatures go on the left and right of the equal sign respectively. Is there an equation editor or something? (V * 3,000 lb/in^2) = (14.7 lb/in^2)*(86,414.7 in^3 (539.7 deg R) (518.7 deg R)...

Homework Statement A tank for scuba diving is designed to contain 50 standard cubic feet of air when filled to a pressure of 3,000 pounds per square inch (gage) at an ambient temperature of 80 F. Calculate the interior volume of the tank. A standard cubic foot occupies one cubic foot at T=15...