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December 20, 2014

Homework Help: Physics

Posted by Anonymous on Sunday, March 10, 2013 at 12:09pm.

An alpha particle (charge +2e and mass 6.64 x10-27 kg) is traveling to the right at 1.50 km/s. What uniform electric field (magnitude and direction) is needed to cause it to travel to the left at the same speed after 2.65 s.?

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