It takes harry 40s to walk from x1 = -12m to x2 = -46m . what is his velocity?

Which atomic model was proposed as a result of j. j. thomson’s work?

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

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency