Recent content by littlesohi

  1. L

    Calculating Power from Torque and Rotor Speed

    So basically by dividing the "weight" of the 50.3 by the rotos speed I will get how much speed it will actually take to move that weight? Is that right??
  2. L

    Calculating Power from Torque and Rotor Speed

    Homework Statement An electric motor runs at 24 rev/s and supplies a torque of 50.3 Nm. What is the power P delivered by this motor? Homework Equations The Attempt at a Solution I just know that power is work/second. I don't know how I can relate the torque, rotor speed and...
  3. L

    Man on a Flatbed: Inertia Prediction

    Homework Statement A flatbed railcar is moving at a slow but constant velocity. A man stands in the railcar, facing sideways (perpendicular) to the motion of the railcar. The man holds a baseball at arm's length and drops it onto the railcar bed. Where does the principle of inertia predict...
  4. L

    Add/Sub. Vectors A & B: Find Cx & Cy

    Vector A has a magnitude of 12 (in some unspecified unit) and makes an angle of 27 with the x-axis, and a vector B has a length of 22 and makes an angle of 72 with the x-axis. Fnd the components of the vector C in the following: (a) C=A+B Cx= Cy= (b) C=A-B Cx= Cy=
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    Partial Derivatives of ln(x+y)/(xy)

    I need help with this one: Find fxy in: ln(x+y)/(xy) .. the ln applies to the whole problem.
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