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April 23, 2014

Homework Help: physics

Posted by David on Saturday, January 12, 2013 at 12:53pm.

an electron with a mass of 9.11 x 10^-31 kg is accelerated from rest across a set of 150 V and are separated by 0.80 cm.
a) determine the kinetic energy of the electron after it crosses between the plates.( ans 2.4 * 10^-17 j)
b) determine the final speed of the electrons. (ans 7.3 * 10^6 m/s)
c) determine the acceleration of the electron while it is between the plates. (ans 3.3*10^15 )
d) determine the time required for the electron to travel across the plates.( ans 2.2*10^-9 s)

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