Ответ:
Объяснение:
E1=k*2*q/(4*a)²=k*q/(8*a²)
E2=E3=k*q/(8*a²)
E4=k*q/(4*a²)
E=E4+√(E2²+E3²) - E1=k*q/(4*a²) + k*q*√2/(8*a²) - k*q/(8*a²)=
=k*q*(1+√2)/(8*a²)≈0.3*k*q/a²
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Verified answer
Ответ:
Объяснение:
E1=k*2*q/(4*a)²=k*q/(8*a²)
E2=E3=k*q/(8*a²)
E4=k*q/(4*a²)
E=E4+√(E2²+E3²) - E1=k*q/(4*a²) + k*q*√2/(8*a²) - k*q/(8*a²)=
=k*q*(1+√2)/(8*a²)≈0.3*k*q/a²
=============================