A uniformly charged straight rod has a length of 60.00 cm with charge +40.00 pC. Determine the y-component of the electric field at a point P, a distance z = 20.00cm perpendicularly from the right end of the rod.

The critical mass of a fissionable material depends upon its nuclear properties (specifically, the nuclear fission cross-section), its density, its shape, its enrichment, its purity, its temperature and its surroundings.
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