Physics 471E: Homework Assignments

HW  # Chapter Problems Date due
1
Nelson, chapt. 1
1.4, 1.7
surf the web:
A) turn in 3 possible topics (together with the literature source) for your biophysics presentation. For each of the topics state a) the physical concept used, b) the biological concept to which it is applied, and c) the insight to be gained from the interdisciplinary approach
B) find and describe an application of osmosis, and discuss transformations in E and order
C) find and describe an application of reverse osmosis, and discuss transformations in E and order
fri, jan 22
2
Nelson, chapt. 4
A) One-dimensional random walk with p(L)=p(R)=1/2. a) Determine the probability that "a walker" is at  the origin (pub) after  N=1000 steps. b) Determine the probability that "a walker" is a distance of 200 steps from the pub after N=1000 steps
4.3 (no info from chapter 2 is needed, except, size =50nm); Stokes law
4.4 (in addition add the biological meaning/relevance of the 4 molecules)
4.6
B) google: describe an application of a random walk concept not discussed in class, ideally outside of biological physics. (be specific, add reference)
C) determine your project topic: turn in the title of  your project,  an  about (200 words) summary of the project (be specific), and a pdf-file of the main literature you will use
mon, feb 1
3 Nelson,

chapts.4, 5
4.7
Your turn 5A, 5C
5.4
5.5
A) Describe two example of low Reynolds number flow in a system not discussed in class. Choose you examples from different spatial scales; include references.
mon, feb 8