Question: A helium ion (Q = +2e) whose mass is 6.6 10-27 kg is accelerated by a voltage of 3700 V. (a) What is its

A helium ion (Q = +2e) whose mass is 6.6 × 10-27 kg is accelerated by a voltage of 3700 V.
(a) What is its speed?
(b) What will be its radius of curvature if it moves in a plane perpendicular to a uniform 0.340-T field?
(c) What is its period of revolution?

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