и вот это ещё.......... Created by KejVan. fizika-ru

и вот это ещё...

KejVan @KejVan

December 2021 1 24 Report

и вот это ещё.........

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fatt52

Verified answer

R1=0.1 м F1=150*10^-6 H r2=0.2 м F2=5*10^-6 ε=?
===
F1=k*q²/r1²
F2=k*q²/(ε*r2²)
ε=(F1/F2)*(r1/r2)²=(150/5)*(0.1/0.2)²=7.5
===============================

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