Recent content by Carolyn

this makes sense, thanks.

I know that a solar day is about 4 minutes longer than a sidereal day. But what if the Earth orbital period around the sun is halved, but the rotation period is same? Will the solar day still be about 4 minutes longer? Thanks.

Hi, so I know that VI = P cos (theta), but during an experiment using a step up transformer, I got the primary voltage 7.42V, primary current 0.41A, and primary power 3.2W. How then should I calculate the angle theta. I can't use arcosine, 'cause that will give me undefined. Thanks a lot.

ok. I think I am getting it, thanks a lot.

But, for example, this picture is also (1,-1,2). so are they a family?

um..so are you saying that I can extend the vector so it eventually intersects with the y-axis? so the miller index should be (1-12)?

thanks for the reply. But could you explain why is the y intercept for the triangular plane -1? it does not seem to intersect with the y axis?

or see the attached file if you can...

Can somebody tell me what is the miller index for the tilted plane? Is it (102) or (112)? Nothing seems to fit... I wonder if we can even describe it with miller index? Please download the picture here in pdf format: http://www.megaupload.com/?d=F8J344BH Thanks!

Basically what we are thinking is it that since one has a larger surface area than the other one and the pressures are the same for both water surfaces, and F = PA, so force is larger on the bigger surface area than the smaller one. So the water should flow in the direction of the smaller...

Hi, we are doing an experiment and encountered the following problem We have two cylindrical tubes connected together and the two tubes have different diameters (laying horizonally on the table, for example). So if we put water into the tubes and apply the same pressure to the two water...

Homework Statement -A taxi is located either at the airport or in the city. From the city, the next trip is to the airport with 1/4 probability, or to somewhere else in the city with 3/4. From the airport, the next trip is always to the city. (a) find the stationary distribution (b)...

g(x) = 1 when -1 < x < 1, and g(x) = 0 otherwise how do I get u(x,t) = (x+at+1)/2a for -1-at < x < -1+at = t for -1+at < x < 1-at = (1-x+at)/2a for 1-at< x<1+at Thanks

Homework Statement please see the attachement Homework Equations Could somebody explain how to get the the system of equations at the bottom of the page from integrating g(x)? The Attempt at a Solution I attempted to integrate, but couldn't get the right answer, do I need...

It's probably a good idea to ask yourself deep inside if you like CS or not, and if you really like Math or not. Having gone through the same mental struggle as you did, I recommend not to make any rash decisions. Sometime it is not your ability but your passion that matters. Even if you don't...