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26 Nov 2019
In a cathode ray tube in an old TV, electrons are accelerated fromrest with a constant aceleration of magnitude 7.03x10^13 m/s^2during the first 2.0cm of the tube's length; then they move atessentially constant velocity another 45 cm before hitting thescreen.
a) find the speed of the electron when they hit the sreen.
b) how long does it take them to travel the length of the tube?
In a cathode ray tube in an old TV, electrons are accelerated fromrest with a constant aceleration of magnitude 7.03x10^13 m/s^2during the first 2.0cm of the tube's length; then they move atessentially constant velocity another 45 cm before hitting thescreen.
a) find the speed of the electron when they hit the sreen.
b) how long does it take them to travel the length of the tube?