Question

Inside a particular cathode ray tube, there is a uniform electric field with a magnitude 359 N/C pointing in the positive x-direction. An electron, initially at rest, moves a distance of 2.60 cm in this field. (a) How much work (in J) does the electric field do on the electron? J (b) What is the change in potential energy (in J) of the entire system (cathode ray tube plus electron)? J (c) What is the velocity (in m/s) of the electron after it moves the 2.60 cm distance? magnitude m/s direction

          Inside a particular cathode ray tube, there is a uniform
electric field with a magnitude 359 N/C pointing in the positive
x-direction. An electron, initially at rest, moves a
distance of 2.60 cm in this field.
(a)
How much work (in J) does the electric field do on the
electron?
J
(b)
What is the change in potential energy (in J) of the entire
system (cathode ray tube plus electron)?
J
(c)
What is the velocity (in m/s) of the electron after it moves the
2.60 cm distance?
magnitude m/s direction

Added by April H.

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