In order to accommodate a larger volume of sample, a chemist scales up his experiment by doubling the diameter of his chromatography column while maintaining a constant length. given that the ratio of mobile phase volume to column volume remains constant, by what factor has the capacity of the column increased?

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)