carafaith02
05.05.2020 •
Physics
A light bulb. The input energy is 10 Joules. The useful output energy is light 4 Joules and
the wasted energy is heat 6 Joules.
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Ответ:
4.0·10^-8 N
Explanation: both forces are negative so force is repulsive
F = k q1·q2 /r². K = Coulomb's constant 9·10^ 9 Nm²/C².
Both Charges are -1.6·10^-10 C and r= 0.076 m