Name: _______________ BioE 104 Homework 1 Due Friday 1/28/11 at 11AM Please attach this problem statement to your completed homework 1. (_____ out of 4 points ) Our random walk analysis in class indicated that, for a number of particles all starting at x = 0 at t = 0, the mean-square displacement <x 2 > = 2D ij t. You’ve been told that, for N particles all at x = 0 when t = 0, the concentration of particles at a given point on the x axis at a given time can be calculated using the equation: c ( x , t ) = N 4 π D ij t e − x 2 4 D ij t Since the equation has one length dimension x, the concentration has units of number of particles/m. The source of this equation was a Stanford student, so it is automatically suspect. Before using it in your research, you decide to test it and check that it agrees with our
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