wanna explain how u got that one. It shouldn't depend on anything except gravity mabye and the air resistance possibly. (assuming we are talking about only 1 type of cannon ball)
I was trying to figure out the best angle to shoot a cannon, with air resistance in the differential equation. I came up with ~36.5 degrees, is that right?
Sample:
A swimming pool whose volume is 10,000 gal contains water that is .01% chlorine. Starting at t=0, city water containing .001% Cl is pumped in at 5 gal/min. The pool water flows out at the same rate. What is the % of chlorine in the pool after 1 hr? When will the pool be .002% Cl ?
Can anyone help me out with mixing solution problems, I know its not that hard I just am having trouble understanding what to do. Sometimes its X sometimes its X/volume of the tank. Can anyone explain it to me in a simple way?
ok, thanks, that's making sense now.
so if I go (pi)*(r^2) with r equal to what we just came up with, I get the cross sectional area of the water at any time , right?
it's changing at a non constant rate if the water goes down. I can't see how pythagorian thm applies. I know how to do a conic tank, but it seems liek I would need to use the circles equation here for one of the sides, mabye the hypotenues, is that right?
I need to know how to figure out "r" in this picture from "R" and "h". It is some kind of proportion or integral I'm guessing, but I can;t think of it. "R" is the radius of a spherical tank. "r" is the radius of the water level (not the same as "R") "h" is the height of the water level. Here...