Homework Help: physics

Posted by Anonymous on Friday, February 24, 2012 at 7:35pm.

A 5.0 {\rm nC} point charge sits at x = 0. At the same time, a 3100 {\rm N/C} uniform electric field (created by distant source charges) points in the positive x-direction.

physics - drwls, Saturday, February 25, 2012 at 1:31am
What does {\rm mean?
Is it necessary at all?

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