Two power lines, each 280 m in length, run parallel to each other with a separation of 35 cm. If the lines carry antiparallel currents of 140 A, what is the magnitude and direction of the magnetic force each exerts on the other? Magnitude N
Direction (choices are towards eachother and away from eachother)

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

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge

Did anyone do 1.06 lab: cloud formation i need with it i go to k12 lavcame i need to get it done quick