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SERPOP$519.$P$\mathrm{.}045.$WI$.$

A solid sphere of radius $40\mathrm{.}0$ cm has a total positive charge of $22\mathrm{.}9C$ uniformly distributed throughout its volume. Calculate the magnitude of the electric field at the following distances.

$($a$)0$ cm from the center of the sphere

kN$/$C

$($b$)10\mathrm{.}0$ cm from the center of the sphere

kN$/$C

$($c$)40\mathrm{.}0$ cm from the center of the sphere

kN$/$C

$($d$)64\mathrm{.}5$ cm from the center of the sphere

kN$/$C

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