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In a cathode ray tube, electrons are accelerated from rest by a constant electric force of...

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Physics

In a cathode ray tube, electrons are accelerated from rest by aconstant electric force of magnitude 6.40 × 10−17 Nduring the first 4.40 cm of the tube’s length; then they move atessentially constant velocity another 45.0 cm before hitting thescreen.

a.How long does it take them to travel the length of thetube?

b.Find the speed of the electrons when they hit the screen.

c.How long does it take them to travel the length of thetube?

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