Recent content by Charismaztex

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    Difference between Flip-flop and latch

    Hi, I've read that some authors do not make the distinction that latches are level triggered (with clock of course) and flip-flops are edge-triggered and synchronized by the clock. I am wondering, are there level-triggered flip-flops? My lecture notes says that this is a...
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    What is the correct interpretation of this circuit?

    My question: 1) In diagram (b), is there a reason why Vo is to the left of 15 ohm resistor and not to the right? (which wouldn't produce the same answer) cf. diagram (a) It might be a minor point but I'd like to know the specific reason Thanks
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    Understanding the Passive Sign Convention: Explaining P=+iv and P=-iv

    Ah, thanks. I think that's the key. I saw a diagram in my textbook with the current going i--->+[resistor A]- i---> -[resistor B]+ and I thought that the current passes through the negative terminal of resistor B first. But the actual voltage across resistor B is negative, indicating that the...
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    Understanding the Passive Sign Convention: Explaining P=+iv and P=-iv

    The writer of the article wrote "Find PTotal and Determine if this resistor is supplying power or dissipating it." How can a resistor be supplying power? I know from a physical point of view it is impossible for resistors to supply power but how do we explain the negative sign for power if the...
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    Understanding the Passive Sign Convention: Explaining P=+iv and P=-iv

    From what I understand: P=+iv (current enters through the positive polarity of the voltage, implying that the element is absorbing power) and P=-iv (current enters through the negative polarity of the voltage, implying that the element is releasing or supplying power) I remember reading that...
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    Explaining and Solving Matrix Inverses - Homework Question | Charismaztex

    Homework Statement a)Suppose we know that M^2+M-6I=0 where M is a square matrix. Explain why inverse of M exists, and find inverse of M in terms of M. b) For A= 0 1 0 calculate A^22. Does the inverse of A exist? 0 0 1 1 0 0 c) Let u be any unit vector...
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    A multichoice question on intensity

    Wait, I think I may have got it. The amplitude doubles so that the intensity quadruples. But intensity= power/time =energy/(time x area S) so E=I x t x S. Hence if when amplitude doubles and surface area halves, E= 4I x t x 0.5S =2I x t x S Hence energy doubles.
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    A question on Newton's laws and tension

    Homework Statement A railway engine pulls two carriages of equal mass with uniform acceleration. The tension in the coupling between the engine and the first carriage is T. Deduce the tension in the coupling between the first and second carriages. Homework Equations The Attempt at...
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    A multichoice question on intensity

    so the energy would be proportional to (2A)^2=4A^2. The energy would quadruple. I also know that intensity is inversely proportional to the area, so if the area decreases by half, the intensity would increase by a factor of 2. Wouldn't that mean that the energy would increase by a factor of 8...
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    A multichoice question on intensity

    Homework Statement A plane wave of amplitude A is incident on a surface of area S placed so that it is perpendicular to the direction of travel of the wave. The energy per unit time reaching the surface is E. The amplitude of the wave is increased to 2 A and the area of the surface is reduced...
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    Related Rates of Change Question

    Homework Statement A spherical tank with an interior diameter of 2m is being filled with water at a rate of 10 liters per second. Determine what rate the height of the water is increasing at when the tank is half full. Homework Equations V=\frac{2\pi r^3}{3}-\pi r^2d+\frac{\pi d^3}{3}...
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    Find the exact value of c for which f is continuous on its domain

    Oh yes, that brings up another point I forgot to mention. L'Hopital's rule is banned from this question. The only hint I got was to split the function into its sums...
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    Find the exact value of c for which f is continuous on its domain

    Hi, thanks for the reply. The numerator is indeed \sqrt{x} -1 + x\sqrt{x-1}
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