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A charge of -2.0*10^-9 coulombs is held fixed at the origin of an xy coordinate system....

A charge of -2.0*10^-9 coulombs is held fixed at the origin of an xy coordinate system. An electron is held in place momentarily at a distance of 7.0 mm from the charge at the origin and then released from rest. What will be the electron's speed when it reaches the 1.0 meter mark from the fixed charge? (Hint: use conservation of energy.)

Please show the work as to how the answer is 2.9949*10^7 m/s

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Aw Change in Łinett enmezgy 3 2. xxx 1.xlo-19

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