To determine if a small molecule acts like a ledgin with respect to in, a researcher plans to incubate purified in both with and without the small molecule and then perform a western blot to detect in in each sample. under which condition(s) should the gel electrophoresis step be performed?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i. e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?

Does heating a metal wire increase or decrease its electrical resistance? why?