Phys 150 HW 4 solutions
Nelson, Problem 4.2, pg 153 (10 pts)
a) From the introductory paragraph to the problem, we understand the number of distinct one-base mutations
to mean the number of 104 -letter long sequences with one (and only one) of the lette
Phys 150 HW 5 solutions
Nelson, Problem 5.2, pg 190 (4 pts) To nd the constant pre-factor, recognize that the integral of the concentration throughout the volume has to be equal to the total number of particles in the volume
c(z )dV = A
c(z )dz = N.
Phys 150 HW 6 solutions
Nelson, Problem 6.2, pg 239 (8 pts) a) Because the boxes are isolated from the rest of the world, their total energy doesnt change and the sum of their temperatures doesnt change Ei,total Ei,1 + Ei,2 3 N 2 kB (Ti,1 + Ti,2 ) (Ti,1
The standard deviation, x , of a measurement, xi , from its central value, xo , is given by
(xi xo ) .
The standard deviation, x , of the mean of multiple measurements, x from the central value, xo ,is given by
( xo ) .
To see t
Phys 150 HW 7 solutions
Nelson, Problem 7.1, pg 290 (4 pts) a) Water came out of the strawberries. The strawberries are made of cells whose membranes are permeable to water but not to sugar. The powdered sugar dissolved in water was already on the surfa