A5.0-kg mass with an initial velocity of 4.0 m/s, east collides with a 4.0-kg mass with an initial velocity of 3.0 m/s, west. after the collision the 5.0-kg mass has a velocity of 1.2 m/s south. what is the magnitude of the velocity of the 4.0-kg mass after the collision? a. 20 m/s ib 15 m/s c 1.0 m/s d. 25 m/s e. 3.0 m/s

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

The radius of an atom is closest in size to a

In which of these cases are the two wave points considered to be in phase with each other?