# physics

if electron are caused to fall through a potential difference of 100000 voltage , determine their final speed if they were initially at rest.

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1. Kinetic Energy = e*V = (1/2)_mv^2

v = sqrt[2eV/m]

V = 100,000 volts (capital V)
e and m are the electron charge and mass in SI units.
Solve for velocity v (lower case)

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