Recent content by Heat

Thank you Pi-Bond. Does my approach for getting the angular momentum appear to be correct?

Homework Statement I've uploaded a pic of the problem and my work at the link below: http://i.imgur.com/K4ukj.jpg" Homework Equations I = mR^2 w Hopefully everything thus far is correct, I'm stuck at finding the rate of change. From what I understood it's essentially the...

I'm not sure I understand. I see that the 5ohm resistor is in parallel to the 3 A current source.

Homework Statement Hi I'm trying to solve the following using mesh current method, instead of node voltage. For this I decided to use supermesh. I made loop 1 the leftmost loop, and loop 2 combination of the center and right loop. -150 + 20I1 + 80(I1-I2) = 0 40I2 = 4I2 = 80 (I2-I1) = 0...

Homework Statement I understand the basic of kmaps like xy+xy' = y y' x 1 1 x' 0 0 would be x. but when we have (x+y)(x+y'), how would that be setup?

I'll go ahead and do that, will post back. Thanks gabba.

-Circuits 1 with lab - Electric Circuits (8th Edition) James Nilsson -Signals and Systems - book: Signals and Systems, 2005 Interactive Solutions Edition by Simon Haykin -Materials in Engineering -Multivariable Calculus -Logic Design with lab Are any books recommended for these...

Am I missing something in the Frobenius method?? Homework Statement Use the method of Frobenius to find solutions near x= 0 of each of the differential equations. The Attempt at a Solution x^2 y'' + (2x^2 + 3x)y' + (x-(5/4))y = 0 My work is as follows: http://imgur.com/3XvP4.jpg...

Homework Statement Finding the double integral of the following \int\int xy / (x^2+y^2+1)^1/2 dA R = [(x,y): 0<=x<=1, 0<=y<=1] Homework Equations None The Attempt at a Solution ok I am having trouble integrating when I see the the quotient. what I have done is...

I uploaded the pic, just click on the word 'diagram'. :)

Homework Statement The 140-lb uniform steel plate ABCD is welded to shaft EF and is maintained in the position shown by the couple M. Knowing that collars prevent the shaft from sliding in the bearings and that the shaft lies in the yz plane, plot the magnitude M of the couple as a function...

yes from 0 to infinity. it would be (1/k + 4/k)(1+1/k)...4/1 = 4...so?

I need help identifying if it converges or diverges or conditionally converges. \Sigma(-1)^{k}\frac{(k+4)}{(k^{2}+k)} First I want to test for absolute convergence, and comparing this limit to 1/k I get that it diverges. Since it diverges, I need to test it now using the Alternating...

ok, so far we both agree it's should be when the applied current in the inner coil is increasing rapidly. anyone else agree to this?

oh, I thought the current was the one points, we were trying to find a current that created a field pointing inwards. Thank you for your help and patience.