ch28-p028 - 28 We consider the point at which it enters the...

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28. We consider the point at which it enters the field-filled region, velocity vector pointing downward. The field points out of the page so that G G v B × points leftward, which indeed seems to be the direction it is “pushed’’; therefore, q > 0 (it is a proton). (a) Eq. 28-17 becomes p 2/ | | Tm e B π = G , or () ( ) 27 9 19 21 . 6 71 0 2 130 10
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