2. An electron is in a position in an electric field which has an electric potential of 12V. a. How much electric potential energy does the electron have?
b. If the electron is allowed to move to a position where the potential is 4V, find the
change in potential energy.
c. If the mass of the electron is 9.1x10-31 kg, and it starts from rest, find the velocity of
the electron after moving through the potential difference

Bernie drove home from a vacation in 1.5 hours. he traveled a total distance of 60 miles. what was his average speed in miles per hour? a. 60 mph b. 90 mph c. 40 mph d. 55mph

Which describes increasing the efficiency of energy resource

An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m. part a how much work is required to bring an additional electron from infinity to the origin? express your answer with the appropriate units. part b if, instead of the second electron coming in from infinity, it is initially at x = + 20.00 m on the axis and is given an initial velocity of 100.0 m/s toward the origin, does it reach the origin? part c how close to the origin does it come?