Question

Ofer 35 de puncte pentru cel mai bun raspuns

Answer 1

[tex]\tt Se~da:\\ \\ d=1,5m\\ \\ F=2 \times 10^{-5}N\\ \\ \triangle Ep=?J\\ \\ \\ Rezolvare:\\ \\ -\triangle Ep=L\\ \\ Deoarece~forta~este~in~sens~invers\Rightarrow -\triangle Ep=-L\\ \\ \triangle Ep=L \\ \\ \triangle Ep=F \times d\\ \\ \\ Calcule:\\ \\ \triangle Ep=2 \times 10^{-5} \times 1,5= 3 \times 10^{-5}J\\ \\ \\ \triangle Ep - pozitiv\Rightarrow \triangle Ep ~ creste.[/tex]