Problem 22:   A proton moves in a circular path of the same radius as a cosmic ray electron moving at 9.5 × 106 m/s perpendicular to the Earth’s magnetic field at an altitude where the field strength is 1.0 × 10-5 T. Part (a)  What will the speed of the proton be in m/s? vp = ______ Part (b)  What would the radius of the path be in meters if the proton had the same speed as the electron?  rp,v = ______ Part (c)  What would the radius be in meters if the proton had the same kinetic energy as the electron? rp,E = ______ Part (d)  What would the radius be in meters if the proton had the same momentum as the electron? rp,p = ______

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Problem 22:   A proton moves in a circular path of the same radius as a cosmic ray electron moving at 9.5 × 106 m/s perpendicular to the Earth’s magnetic field at an altitude where the field strength is 1.0 × 10-5 T.

Part (a)  What will the speed of the proton be in m/s?

vp = ______

Part (b)  What would the radius of the path be in meters if the proton had the same speed as the electron? 

rp,v = ______

Part (c)  What would the radius be in meters if the proton had the same kinetic energy as the electron?

rp,E = ______

Part (d)  What would the radius be in meters if the proton had the same momentum as the electron?

rp,p = ______   

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