Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Probability of quantum tunneling of tennis ball knowing mass, velocity, wall width

  1. May 23, 2010 #1
    1. The problem statement, all variables and given/known data

    Suppose that a ball is tossed at a wall; what is
    the probability that it will tunnel through to
    the other side? The mass of the ball is 0.14 kg,
    the width of the wall is a = 0.2 m, and the one
    who tossed the ball was deadly tired, so that
    the ball is tossed only weakly at 1.0 m/s.

    a=0.2m
    m=0.14kg
    v=1m/s

    2. Relevant equations

    [tex]T=[1+\frac{V_{0}^{2}}{4E(V_{0}-E)}sinh^{2}(\frac{2a}{\hbar}\sqrt{2m(V_{0}-E)}]^{-1}[/tex]

    3. The attempt at a solution

    I presume I must use that equation, though I have no idea what the value of V0 or (V0-E) is! How do I do this?

    Thanks in advance for your help.
     
    Last edited: May 23, 2010
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted