1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Kinematics Electrons In a Cathode Ray Tube

  1. Sep 16, 2009 #1
    A) In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.22 x 10−17 N during the first 2.00 cm of tube's length; then they move at essentially constant velocity another 46.5 cm before hitting the screen. Find the speed of the electrons when they hit the screen.

    B)How long does it take them to travel the length of the tube?
  2. jcsd
  3. Sep 16, 2009 #2


    User Avatar
    Homework Helper

    Before you ask for any help, you have to show your attempts.
    We are here to help you in understanding the Physics.
    We can't do your home work.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook