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Yes, how would you find the potential energy

Find the potential difference ?

I subbed it into 0.5mv^2 to find the kinetic energy

The speed for the second question is actually 3.0x10^6 m/s, i put the wrong numbers.

so is V = (0.5(9.1x10^-31)((1.0x10^6)^2))/(1.6x10^19) and is there a difference between 0.5mv^2 = Eqd and 0.5mv^2 = qV

So I have two questions relating to potential difference 1.An electron with a velocity of 5.0x10^6 m/s injected into a parallel plate apparatus through a hole in the positive plate. it moves across the vacuum between the plates, colliding with negative plate at 1.0x10^6 m/s. what is the...