The refractive index for flint glass for blue and red colors are 1.664 qnd 1.664 . calculate its dispersive power

How do we measure or think of speed in the united states?

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.

What is the frequency if a wave that pases a given pount 22 times in 2 seconds