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In problems where the concentration driving force is not constant but varies with location, the appropriate driving force to use is the

The ratio of mass transfer by convection/advection to that of diffusion in the same direction is called the number.

What is Riemann integration

A drinking glass is a circular cone that is cut with a plane perpendicular to the axis of the cone . The hight of the cone is 10 cm, the diameter of the top is 8 cm and of the bottom is 6 cm. There is a similar drinking glass of the same set, which has twice the volume of the original glass. How many percent the hight of the larger glass is of the original glass' hight?

Whats the Reimann Sum ?

Let f be a differentiable function such that f(8)=2 and f′(8)=5. If g is the function defined by g(x)=f(x)x3, what is the value of g′(8) ?