A proton moving with speed v = 3x10$m/sin a field-free region abruptly enters a uniform magnetic field B = 0.85T (where B 1 3 ). If the proton enters the magneti c field region at a p = 37° angle as shown in the figure. At what angle 0 does it leave the magnetic field and at what distance x does it exit the field? (m, = 1.67x10-27kg, q, = 1.6x10-1ºC)
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