Suppose a diode consists of a cylindrical cathode with a radius of 6.200�10? 2cm , mounted coaxially within a cylindrical anode with a radius of 0.5580cm . the potential difference between the anode and cathode is 335v . an electron leaves the surface of the cathode with zero initial speed (vinitial=0). find its speed vfinal when it strikes the anode.

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity