Recent content by d-rock

I don't know what you mean? The error formula in my book (which is surrounded by Linearization, etc.) has |E| <= (1/2)*M*(|x-xo| + |y-yo|)^2 where M is the largest possible value of the second derivatives at the point given. Then I just assumed that (x - xo) and (y-yo) are the dx and dy...

Estimating Maximum Error, Odd Question? (Please Help Today!) Homework Statement Suppose that T is to be found from the formula T = x(e^y + e^-y), where x and y are found to be 2 and ln(2) with maximum possible errors of |dx| = 0.1 and |dy| = 0.02. Estimate the maximum possible error in the...

There is only two nodes, and no nodes are being ignored. A node is not always just a "point" connecting two circuit parts. It is any part of a circuit that connects two OR MORE circuit elements. Therefore, Node 1 is the wire that the 3 ohms, 2 A, and 1 ohm elements share at the top left...

I will tell you that the battery voltage shouldn't matter IF you are solving for the Thevenin resistance, Rth. In some Thevenin equivalent problems you can usually do the zero-source method, but this only works if there ISN'T a dependent source. This method involves turning 'off' all of the...

It's not a homework problem. It was a test problem that we had and it's been a debate over the answer. I will give my work below, but I would like an unbiased opinion and explanation for your answers please, so please work it before reading my below solution if you will. My professor has a...

What was your answer...? If it is 4 then you will have to explain why, please. If not, then still explain why because then I won't have any clue how you got that.

Alright, let's start from the beginning. Req = [(80 || 20) || 16] + 2 80 || 20 = 80(20)/(80 + 20) = 16 ((80 || 20) || 16) = 16(16)/(16 + 16) = 8 and lastly, + 2, so: Req = 10 ohms Then Ieq = 100 V / 10 ohms = 10 A. You had this correct. Now, the current divider, let's do this...

Homework Statement Two farmers have no more than 15 cows. They get as many dollars for each cow as they have cows. For example, if they have 3 cows then they get 3 dollars per cow so a total of 9 dollars. After taking this money they bought as many sheep as possible at $10 a sheep. The...

Alright. Well, to find the i and j of the third vector earlier, I had used arctan to find an angle and then did magnitude * cos(angle) and so on. But turns out I used the wrong angle. I had done the angle from the origin, instead I should've used the one between VectorB and VectorC...

I wrote it that way because the physics book wrote it that way, they just specified it (i.e. on the right side A and B stood for the magnitudes of the vectors, etc.). Also I had that process similarly done already: part B: A x C 8 0 0 8 0 0 -7 -8 0 -7 -8 0 Doing that process...

I think the answer to that is no. The figure is like this: VectorA is straight to the right. VectorB is straight up. VectorC starts at the end of VectorB and goes back to the origin (so the head of VectorC touches the tail of VectorA). So VectorC is like the opposite of what it...

Homework Statement For the vectors in the figure below, with a = 8, b = 7, c = sqrt(113), give the magnitude and direction of the following cross products. (See attachment for figure/right triangle). (a) a x b (b) a x c (c) b x c Homework Equations \vec{A} \cdot...

Yeah I went into school early and was figuring out the ratio. I finally understood it so yeah, it's good now.

Homework Statement Three digital clocks A, B, and C run at different rates and do not have simultaneous readings of zero. Figure 1-6 shows simultaneous readings on pairs of the clocks for four occasions: ___________312_________________512__ Clock A ___25______125_______200_______290__...