FULL SCREEN PRINTER VERSION BACK NEXT Chapter 19, Problem 06 GO Review Multiple-

Question

FULL SCREEN PRINTER VERSION BACK NEXT Chapter 19, Problem 06 GO Review Multiple-Concept Example 4 to see the concepts that are pertinent here. In a television picture tube, electrons strike the screen after being accelerated from rest through a potential diffe electrons are quite large, and for accurate calculations of the speeds, the effects of special relativity must be taken into account. Ignoring such effects, find the electron speed just before the electron strikes the screen. the tolerance is +/-296 GO TUTORIAL SHOW ANSWER LINK TO TEXT LINK TO TEXT

Explanation / Answer

Buy ignoring special relativity effect, the speed can be found by work-energy theorem

eV = 1/2 mv^2

v = eV/m

charge of e+ = 1.6× 10-19 coulombs

mass of e+ = 9.10× 10-31 kilograms

v = 1.6*10^-19 * 34000/9.1*10^-31

v = 7.731*10^7 m/s

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