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maxonik [38]
3 years ago
12

The charges on two metallic balls are 5.0 and 7.0 coulombs respectively. They are kept 1.2 meters apart. What is the force of in

teraction between the two? (k = 9.0 * 10© newton·metersÆ/coulombÆ)
Physics
1 answer:
Nadya [2.5K]3 years ago
3 0
We know, F = k * q₁ * q₂ / r²

Substitute the known values, 
F = 9 * 10⁹ * 5 * 7 / (1.2)²

F = 315 * 10⁹ / 1.44

F = 218.75 * 10⁹ N

F = 2.1875 * 10¹¹ N   [ Final Answer ]

Hope this helps!
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