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23 Nov 2019
In a cathode ray tube, electrons are accelerated fromrest by aconstant electric force of magnitude 6.45 x10â17 Nduring the first 2.18 cm of tube's length;then they move atessentially constant velocity another 45.0 cmbefore hitting thescreen. Find the speed of the electrons whenthey hit thescreen. How long does it take them totravel the length ofthe tube?
In a cathode ray tube, electrons are accelerated fromrest by aconstant electric force of magnitude 6.45 x10â17 Nduring the first 2.18 cm of tube's length;then they move atessentially constant velocity another 45.0 cmbefore hitting thescreen. Find the speed of the electrons whenthey hit thescreen. How long does it take them totravel the length ofthe tube?
Bunny GreenfelderLv2
5 Mar 2019