You need a change of variables. you know you need a certain number of lux and std minimum and you know the maximum houses so subtract the mins from the max to obtain something along the lines of:
30-10 -5 = x+y => y = a function of x
you can then replace all y with the function of x and can...
You need to get chummy with your buddy the Mohr stress/strain circle... although just looking at the question you could solve it purely from math. I assume you have a solid mechanics or mechanics of materials textbook you could easily find it in there.
It is however you took care of that by making the equation = mg-ma
The negative takes care of it.
The sum of forces is equal to ma therefore you get something like this
ƩF = Fg + Ff which goes to
ma = mg + Ff
You actually have the right formula you just misinterpreted it.
To tell you the truth I deal with upper atmosphere where the continuum assumption isn't valid (>200km) so I'm not actually sure. I do know that the above should be a decent first order approximation.
Now assuming this flow can be characterized as either a turbulent or laminar flow (and unless you put scramjets on, no shocks)
F = 0.5*rho*C*V^2*A
the area you choose is based on the shape you choose to model the coefficient with. ie it may be frontal area, projected area, or wetted area. So...
Hmmm... the data still seems wonky. According to this for 1m resolution at 600km I only need a mirror of about 1.1 m, which doesn't seem right given that every commercial sat I know has a mirror around 1.6 m and has a working resolution in colour of around 4m.
Thank you. I just had just found something saying just this and this confirms that I have been using every angle but the right one! This formula should do for a first approximation. I just need to give the guys in the structures and mechanisms group an idea of how big this is going to be...
Does anybody know of a good reference for determining the required diameter of an Earth observing telescope's primary mirror? I am trying to find determine a rough estimate for a design I am working on. So far I have found the equation
Sin\theta = 1.220 \lambda/D
for angular resolution and...
Don't take this the wrong way but... you really should be able to cook by 18-22 (assuming you went to uni straight from HS). It really isn't tough to learn just learn it during your summer break.
Ya you really have been... Maple can even do series solutions so why bother once you get your degree. Even in 3rd year my profs accept my math proofs from MATLAB and maple runtimes. But that may not apply outside of Eng... I don't know. Thats not to say it isn't necessary to understand what...
Sustainable and Renewable Energy Engineering is becoming more popular as a new Eng discipline for schools to offer. One thing to be weary of is that not all have become accredited yet. I know Carleton University offers an accredited SREE program... other than that if you're looking to work on...
Haha maybe but I can hardly afford a Canadian University as a Canadian citizen. Unless I got a ride from them I doubt I would be able to afford MIT as a foreign student. So from what people are saying my best bet is chem phys, phys, EE, masters of Aero at MIT, or i just saw the ISU in France...
Thanks for the advice DDTea and Shackleford.
From what I can tell on Chem Phys programs in Canada. I would have probably the first two years of course work from my SS Eng. I could do the EE but from what I can tell my University seems to focus more on digital electronics and computer elec...