Recent content by meanmachine

  1. M

    Need help with solving currents using mesh analysis

    Homework Statement i can't write the problem text as it is a circuit [b]2. Homework Equations I labelled the meshes as clockwise shown on the image KVL: The sum of voltages around a loop equals zero The Attempt at a Solution i1 = 8A i2: 19(i1 - i2) - 5.54(i2-i3) = 0...
  2. M

    Thermodynamics closed system - first law

    Homework Statement 1kg of water that is initially at 90 degrees celsius with a quality of 10% occupies a spring loaded piston cylinder device. The device is now heated until the pressure rises to 800kPa and the temperature is 250 degrees c Determine the total work done during this process...
  3. M

    Definite integration (area between curves)

    Homework Statement Calculate the area between the curves y = sin 2x and y = cos x from x = to x = 90 degrees Homework Equations Using the difference function: ∫(upper = 90) (lower = 0) [sin2x - cos x] The Attempt at a Solution (sin 2x) - (cos x) = ∫ sin 2x - cos x = ∫-0.5...