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Can someone please help me with this question? I cant seem do get the right answer!...

Can someone please help me with this question? I cant seem do get the right answer!

An expression for the electric field that was produced by a spherically symmetric distribution is 2.47×103r2 [^(r)] N/C.

A 28.0 cm diameter spherical surface shares its center with the spherical electric field. What is the flux through this spherical surface?

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