Respostas

  • Usuário do Brainly
2014-07-04T15:36:45-03:00
Ep= K . Q . q / d
Ep=9.10^9.5.10^-6.0,2.10^-6/0,1²
Ep=9.10-³/0,01
Ep=900.10-³
Ep=0,9 J