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August 30, 2015

Homework Help: physics

Posted by Maree on Friday, November 5, 2010 at 5:52pm.

Two identical metal plates with small holes are aligned a distance L=7.8 cm apart. They have a potential difference of 127 Volts. An electron can enter through the hole in the negative plate and exit through the hole in the positive plate. If it enters with a velocity of 4630 km/s at the negative plate, with what velocity does it exit at the positive plate?

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