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June 29, 2015

Homework Help: Physics grade 12

Posted by John on Thursday, April 5, 2012 at 2:31pm.

A horizontal beam of alpha particles are injected with a speed of 1.3x10^5 m/s into a region with a vertical magnetic field of magnitude 0.155T.
A- How long does it take for an alpha particle to move half way through a complete circle?
B- If the speed of the alpha particle is doubled, does the time found in part A increase, decrease, or stay the same? Explain.
C- Repeat for part A for alpha particle with a speed of 2.6x10^5 m/s.
D- What does this infer with regard to the frequency of EMR radiated by identical charges (at any speed) entering a perpendicular magnetic field?

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