A 1-kg ball moving at 3 m/s strikes a 2-kg ball and stops. If the 2-kg ball was initially at rest, find its speed after the collision.

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

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.

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?