q: what happens when cold air approaches a body of warm air? optional answers: a. the warm air rises. b. the warm and cold air both disappear. c. the warm and cold air mix immediately. d. the cold air rises.

What are the theoretical properties of a gas at a temperature of 0 kelvin?

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

Should we celebrate the voyages of zheng he mini q answer key