A proton enters a constant magnetic fi eld of magnitude
Chapter 19, Problem 19.4(choose chapter or problem)
A proton enters a constant magnetic fi eld of magnitude 0.050 T and traverses a semicircle of radius 1.0 mm before leaving the fi eld. What is the protons speed? (a) 1.6 _ 103 m/s (b) 2.3 _ 103 m/s (c) 2.8 _ 104 m/s (d) 1.8 _ 102 m/s (e) 4.8 _ 103 m/s
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