Give all answers in SI units unless it is specified otherwise. Please use the following

values for thermodynamic constants:

$R=8\mathrm{.}314\frac{J}{m}o\frac{l}{K}$

$k=1\mathrm{.}381E-23\frac{J}{K}$

A protein motion was tracked with a single molecule microscope. The root$-$

mean$-$square$-$displacement in $2$D was recorded as below. What is the diffusion

constant in $c\frac{m^2}{s}?$ You may use Excel, MATLAB, Python...any program to do the

fitting. During the fit, force the intercept $(0,0)$ since $msd=0$ at time $=0.$

Points$)$