Recent content by IPhO' 2008

  1. I

    Finding the Lagrangian for a 3D Spring Pendulum

    I'm not sure but I think Cartesian coordinate in easier than Spherical coordinate.
  2. I

    Lagrangian equation in special relativity

    Can we use the method of Lagrangian equation in the very high velocity system and how to use it? Thank you.
  3. I

    J.J Thomson's determination of of the ratio m/e

    find \SigmaFx \SigmaFy in terms of E,H,e etc. \SigmaFx = md2x/dt2 \SigmaFy = md2y/dt2 and solve the differential equations.
  4. I

    Solving ODE: $\frac{dx}{dt}=ax(b-x)$

    dx/(ax(b-x)) = dx/abx + dx/ab(b-x) = dx/abx - d(b-x)/ab(b-x) and then you can integrate these terms.
  5. I

    One question about Parabolic and Hyperbolic trajectory.

    Thank you.
  6. I

    One question about Parabolic and Hyperbolic trajectory.

    In the Parabolic and Hyperbolic trajectory.Is the sun in the focus point of parabola and hyperbola?
  7. I

    Orbital energy of ellipse and hyperbolic trajectory

    Please show me how to prove it.
  8. I

    Orbital energy of ellipse and hyperbolic trajectory

    Please tell me how to find the orbital energy of ellipse and hyperbolic trajectory. Thank you.
  9. I

    Finding the Degree of Freedom in Mechanics for Scientists

    Thank you so much.
  10. I

    Finding the Degree of Freedom in Mechanics for Scientists

    Please give me some example.
  11. I

    Finding the Degree of Freedom in Mechanics for Scientists

    How to find the Degree of freedom (Mechanics) of system? Thank you so much.
  12. I

    The oscillation of liquid in U tube which has an acceleration

    g2[/sup ] is g2 and a[sup]2[/sup ] is a[SUP]2.
  13. I

    The oscillation of liquid in U tube which has an acceleration

    Homework Statement The U tube contains the liquid.The length of the liquid in U tube is L. If U tube has an acceleration a in X-axis and we make liquid a small oscillation.Find the period of oscillation. The Attempt at a Solution I know the answer is...
  14. I

    Complex number in alternating current circuit

    How to use complex number in the alternating current circuit?
  15. I

    Surface area of a cone-inconsistency?

    In the area formula.What is the t?
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