Homework Help: physics

Posted by Kelly on Tuesday, April 1, 2008 at 2:52pm.

An ionized helium atom has a mass of 6.6*10^-27kg and a speed of 4.4*10^5 m/s. The atom moves perpendicular to a 0.75-T magnetic field on a circular path of radius 0.012m. Determine whether the charge of the ionized helium atom is +e or +2e.

Can anyone please give me some ideas to do it? Thanks!

physics - bobpursley, Tuesday, April 1, 2008 at 3:17pm
Centripetal force=mv^2/r that has to equal Bqv, right? solve for q

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