Recent content by smb360rewind

Homework Statement Two closed systems of the same size, temperature, and pressure. One is filled with pure nitrogen the other an atmospheric mix (nitrogen/oxygen/etc...throw in some moisture). I want to evacuate both systems to 500 microns using equally sized vacuum pumps. Why will the...

Something to play with: Ballistic Trajectory (2-D) Calculator http://mysite.verizon.net/res148h4j/javascript/script_trajectory2d.html

Consider a trade certificate at a community college or look into a local union. A friend of mine was a sheet metal grunt fabricating all kinds stuff when he was recruited from within to the engineering dept. Many unions and some employers will train or pay for your (additional) schooling...

Thank you. Overlaying the two equations in a sketch reveals your point. I'm starting to understand the importance of "sketching" problems.

Just worked through the "ball-falls-off-a-cliff" problem and was curious as why the equation tan \theta = \frac{vy}{vx} is used to find the angle at which the ball strikes the ground versus tan \theta = \frac{sy}{sx} Homework Statement Homework Equations The Attempt at a Solution