What is the force, in terms of Coulomb's constant, between two electrical charges of #18 C# and #35 C# that are #15 m # apart?

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Answer 1 · 2016-04-24T15:53:33

#2.8K#

Electromagnetic force is given by

#F=K(q_a*q_b)/r^2#,

where #F# is force, #q# is the magnitude of either charge, #K# is Coulomb's constant, and #r# is the distance between them.

Using values from the question,

#F=K(18*35)/15^2=630/225K=2.8K#