Physics
posted by Mary .
Due to friction with the air, an airplane has acquired a net charge of 1.70 105 C. The plane moves with a speed of 3.15 102 m/s at an angle with respect to the earth's magnetic field, the magnitude of which is 5.00 105 T. The magnetic force on the airplane has a magnitude of 2.35 107 N. Find the angle . (There are two possible angles.)
° (smaller angle)
° (larger angle)

F=qv x B in vectors
so
sinTheta=F/qvB
and remember your trig identies:
sinTheta= sin(180Theta) as I recall...
For instance, Sin 87= sin 93
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