What is the force, in terms of Coulomb's constant, between two electrical charges of #8 C# and #-15 C# that are #9 m # apart?

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Answer 1 · 2018-06-19T00:32:13

#-1.48 \ "C"^2"/m"^2*k#

#F=k(q_1q_2)/r^2#

where:

#k# is Coulomb's constant

#q_1,q_2# are the charges of the two charges

#r# is the distance between the two charges

So, we get:

#F=k(8 \ "C"*-15 \ "C")/((9 \ "m")^2)#

#=(-120 \ "C"^2*k)/(81 \ "m"^2)#

#=-1.48 \ "C"^2"/m"^2 \ k#