1.Tension 20 N on copper wire (A=0.01 cm², Y=1.1×10¹¹ N/m², σ=0.32). Decrease in cross-sectional area?a.1.16×10⁻⁶ cm²b.1.16×10⁻⁵ m²c.1.16×10⁻⁴ m²d.1.16×10⁻³ cm²Login to continueOnly logged in users canattempt or see the solution.
