Recent content by Yura

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    Infinite Capacitance: Uses & Implications in JFET Circuits

    Theoretically only, would a capacitor of infinite capacitance be considered an open circuit? What would it be used for in application if it did exist? The reason I am asking is because I have a homework problem where it is used with a JFET transistor in a circuit. If I can't solve the...
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    Right Hand rule to find direction of the force

    i don't know where you got velocity from... (might be something but i can't remember learning anything on it to do with this) and i can't seem to manage to relate the question the the image.. if you hold your palm flat down on a table top and have your thumb at a rightangle with all your...
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    Rotation of Axis to Eliminate Cross-Product Term

    a response in your method =p http://img96.imageshack.us/img96/1745/sresponsewm5.jpg
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    What is the Laplace inverse of F(s) = [3*e^(-4s)] / [s*(s^2 + s + 5/4)]?

    Homework Statement just a small part of a large problem ><a I am not even sure if this is in the right place. the first two questions i have to ask are really minor so i didnt want to make separate threads for each one. the third one is an actual problem itself tho. (1) i need the laplace...
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    What is the integral of tangent x divided by x from 0 to infinity?

    i would do integration by parts on the 1/x and the tan(x) then work from there. probably let tan(x) equal sin(x)/cos(x) and use substitution integration to solve that part then when you've solved the integration, sub in infinity and just logic it out from there i guess. sorry if its...
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    Solve Ellipsoid Problem: Integrate cos(theta)*sqrt[cos^2(theta) - (x^2/a^2)]

    Homework Statement someone asked the ellipsiod problem before and i didnt under stand anythign in the repsonces >< but i had already gotten this far that my equation (simplified) is cos(theta)*sqrt[cos^2(theta) - (x^2)/(a^2)] i need to integrate this equation with respect to d(theta)...
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    Under damp ing spring, eigen, 2-nd order eqn as 2 1-st order in matrix form.

    M a s s - s p r i n g - d a m p e r - s y s t e m. (sorry about the random apostrophe's in some of the writing, i don't want someone to just google and take my working ><. i don't know if the apostrophe thing works though...) i have two different methods but i don't think either is right...
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    Can you find the values of angles a, b, and c in this grade 10 angle problem?

    I'm still not making any progress on that problem. =\ @carbz: I've learned trig already, I'm studying in Uni right now (but like you said, there's not enough info to use trig). The frustrating part is that the problem comes out of a grade 10 book and I'm having so much trouble with it. I...
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    Einstein's Intelligence Quiz ?

    19 minutes ^^; Wrote down the clues twice each to remember them (the second time around I slightly categorized them to make them easier to find), then drew a table of 5x5 and filled it out. >< I didnt even realize when I finished that one of the slots was still missing a pet till I read here...
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    Can you find the values of angles a, b, and c in this grade 10 angle problem?

    Thanks for the responces ^^ I'm glad to know I'm not the only one who thinks the question is really strange. =] I took another look at the original question and it's the same. The angle b forms on the radius within the circle and not on the circumference, the drawing was given in the...
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    Can you find the values of angles a, b, and c in this grade 10 angle problem?

    grade 10, angle problem (geometry). Homework Statement find values of angles a, b and c in order http://img151.imageshack.us/img151/4662/trigproblemyn1.th.jpg the two lines withthe arrows drawn on them are parallel the center is at where the 94 degree angle forms Homework Equations...
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    What is the distance x in terms of kinetic energy, using relativistic mechanics?

    its a four part question but the first part has me stuck: the question: A particle of mass m is accelerated from rest by a constant force F along a straight line for a duration of time t. Use relativistic mechanics unless explicitly stated otherwise. Also remember that the definitions of...
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    Curve of intersection of plane and surface

    oh I am done. i was just getting some reassurance for my method i used. (thus why i didnt post this into the homework forum)
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    Curve of intersection of plane and surface

    @jpr0: thanks for checking yeah, i figured there would have been a much easier way to get this done but i couldn't find one. how else could it be done? was that last line supposed to be 26 and 24 instead of the 25 and 23 (respectively) in that case should i have stopped at instead of...
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    Curve of intersection of plane and surface

    this is the problem and I've worked for mostof it, but I am not sure I've got the right way to go about it, or if the ansewr i have found it right. here, I am using the method for finding the vector equation given the plane 2x + 6y + z = 6 intersects the paraboloid z = x^2 + y^2, find and...
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