Diketahui:Q1=20 coulab Q2=20 r=Sm K=9.10pangkat9nm2/C2 Ditanya=F?

[tex]f = k \times \frac{q1 \times q2}{r {}^{2} } [/tex]
[tex]f = 9 \times {10}^{9} \times \frac{20 \times 20}{5 {}^{2} } [/tex]
[tex]f = 9 \times {10}^{9} \times \frac{400}{25} [/tex]
[tex]f = 9 \times {10}^{9} \times \frac{16}{1} [/tex]
[tex] f= 144 \times {10}^{9} [/tex]