calculate the pitch travelled by a charged particle moving with velocity 3m/s in external magnetic field making angle 30° with the field. Given the frequency of the particle is 0.1Hz
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After a shell explodes at the top of its trajectory, the center of gravity of the fragments
has an acceleration, in the absence of air resistance,
A) of less than g downward.
B) equal to g and downward.
C) greater than g and downward.
D) of g downward plus a forward component.
E) of g downward plus a backward component.
Ans: B
Explanation:
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