Two cars start moving from the same point. One travels south at 64 mi/h and the other travels west at 48 mi/h. At what rate (in mi/h) is the distance between the cars increasing three hours later? g

Abeam of electrons moves at right angles to a magnetic field of 4.5 × 10-2 tesla. if the electrons have a velocity of 6.5 × 106 meters/second, what is the force acting on the electrons? the value of q = -1.6 × 10-19 coulombs.