A roller coaster loop has a frequency of .88 Hz. The loop has a radius of 11.932 m. The coaster has a mass of 543 kg. Find the velocity of the loop and then find the Fn of the roller coaster at the top of the loop. All work needs to be shown

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.