Determine the Schmidt number for ethyl alcohol flowing through a copper trough. Assume that the diffusivity of ethyl alcohol into air is 5.0 x 10-6m^2/s and into copper it is 3.0 x 10^-16m^2/s.

What will be an ideal response?


Physics & Space Science

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In a fusion reactor, the high temperature of the order of 108 K is required in order that what condition is met?

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A light ray is incident on the surface of water (n = 1.33) at an angle of 60° relative to the normal to the surface. The angle of the reflected wave is

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In the Rutherford model of the hydrogen atom, a proton (mass M, charge Q) is the nucleus and an electron (mass m, charge q) moves around the proton in a circle of radius r. Let k denote the Coulomb force constant (1/4??0) and G the universal gravitational constant. The ratio of the electrostatic force to the gravitational force between electron and proton is:

A) kQq/GMmr2 B) GQq/kMm C) kMm/GQq D) GMm/kQq E) kQq/GMm

Physics & Space Science