Recent content by Magnawolf

  1. M

    Finding Turbine Inlet State - Thermodynamics

    Homework Statement max. Turbine work output rate: 6.0MW Turbine isentropic efficiency: 90% Turbine exit state (isentropic): 40KPa, x=92% Turbine and pump actual process are assumed adiabatic Find turbine inlet state: Pinlet, Tinlet, Sinlet Homework Equations W = ΔH h = hf + xhfg The Attempt...
  2. M

    What Are Good Electives To Take During Undergrad? (applied mathematics)

    I have 24 more upper division math courses to complete over 3 more semesters. I want to go full time which means I need to at least take 12 units (4 classes) of whatever I want. As someone who doesn't know what they want to do with an applied mathematics degree after I graduate, what sort of...
  3. M

    Engineering Solving Basic Circuit Problem: Find Voltage Across 10 Ohm Resistor

    alright thanks
  4. M

    Engineering Solving Basic Circuit Problem: Find Voltage Across 10 Ohm Resistor

    Here's the solution to the problem. It looks like the book did source transformation, which I didn't think was fair because this problem is before source transformation. I know nodal analysis and mesh but I thought it was possible to do without them. I thought you could just find the R-total...
  5. M

    Engineering Solving Basic Circuit Problem: Find Voltage Across 10 Ohm Resistor

    Homework Statement Find voltage across 10 ohm resistor. Homework Equations Ohm's law The Attempt at a Solution 20 // 30 = 12 30 // 60 = 20 That's as far as I can get. The answer is 14.286.
  6. M

    Simple Nodal Analysis Problem Solution and Explanation

    This. This is what I needed. Thanks so much!
  7. M

    Simple Nodal Analysis Problem Solution and Explanation

    Homework Statement Homework Equations KVL and KCL The Attempt at a Solution Let V = V1 and the Voltage across the 2 ohm resistor be V2 just for reference. Step 1: KCL @ Supernode: V1/3 + V2/2 + 21/4 + V3/6 = 0 I think my problem is here somewhere. Does V3 = V2 because...
  8. M

    Engineering Redrawing a Circuit: Tips & Tricks for Power Sources

    thanks bruh
  9. M

    Engineering Redrawing a Circuit: Tips & Tricks for Power Sources

    I'm trying to study the basics right now lol. I understand I1 = 6, because the voltage is 24 V and the resistor is 4. What throws me off is the -8V on the other side. How does it behave in the circuit? I2 is apparently 16A. Is it because the voltage through the resistor is 32V? Now what...
  10. M

    Engineering Redrawing a Circuit: Tips & Tricks for Power Sources

    Homework Statement Homework Equations I just need help redrawing the circuit The Attempt at a Solution I don't understand how to draw the power sources in correctly. I'm getting mixed on on whether they're in series or parallel with the resistors and such. Any tips would be appreciated.
  11. M

    Help Solving for X (Easy I think)

    sinxcosx+\frac{1}{2}sin2x = 0.0392 I can't figure out how to solve for x on this one... I tried sin2x = cosxsinx but still can't get anywhere.
  12. M

    Finding Polar Equation for hyperbola with Graph xy=16

    Inversely? I'm not sure!
  13. M

    Finding Polar Equation for hyperbola with Graph xy=16

    Homework Statement Find a polar equation with the graph as xy=16 Homework Equations r = ed/(1+- cos\theta)? I'm not really sure at all. The Attempt at a Solution I also tried using x = rcos\theta and y = r sin\theta but I can't get anything. I know it's a hyperbola.
  14. M

    Finding the Power Series of f'(x) from f(x) = x^2cos(2x)

    Oh okay, I got it now. Thanks for everything man!
  15. M

    Finding the Power Series of f'(x) from f(x) = x^2cos(2x)

    When you say differentiate under the sum, do you mean differentiate each term in the sequence or do you mean you can actually take the derivative of the series equation? I tried googling and checking my textbook and I don't know how to take a derivative of a series in equation form, with the n's...