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A plastic hoop of radius $R=35 \:\rm cm$ has 12 charges each with $q = 1.0 \mu \rm C$ placed symmetrically around the circumference of the hoop. One charge is removed and placed at the center of the of the hoop as shown in the figure below.

What is the magnitude of the force on the charge in the center of the hoop?

A

$73 \:\rm N$

B

$0.026 \:\rm N$

C

$73,000 \:\rm N$

D

$2.4 \:\rm N$

E

$0.073 \:\rm N$

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