Anew protein is 120 amino acids. using an average molecular weight of 110 da per amino acid: a. estimate the radius of the protein. b. estimate the diffusion coefficient in water (viscosity =0.7x10-3 n*s/m2) at 37°c. boltzmann constant =1.38x10-23 j/k c. calculate the amount of time for the root mean square displacement of the protein in 3 dimensions to reach 2mm in water.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero