Asound wave propagates in air at 27°c with frequency 4.00 khz. it passes through a region where the temperature gradually changes and then moves through air at 0°c. give numerical answers to the following questions to the extent possible and state your reasoning about what happens to the wave physically.

(a) what happens to the speed of the wave?
(b) what happens to its frequency?
(c) what happens to its wavelength?

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc