An airplane with a weight of 3500 N is flying through the air. The vertical lift on the plane is 4500 N, the friction with the air is 1500 N, and the force applied by the engines is 1250 N. Draw a free body diagram of this situation and find the net force acting on the airplane. Your work
should include both the size of the net force and the direction it points.

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