Ответ:
ΔL₂=ΔL₁/4
Объяснение:
σ=F/S
σ₁=F/S₁=F/0.5S₂=2σ₂ σ↑
S₁=0.5*S₂ S↓
ξ₁=ΔL₁/L₀₁ L₀₁=2L₀₂
ξ₂=ΔL₂/L₀₂
σ₁=EΔL₁/L₀₁= EΔL₁/2L₀₂
σ₂=EΔL₂/L₀₂= EΔL₁/L₀₂
σ₁/σ₂=2
ΔL₁/ΔL₂=σ₁*L₀₁/σ₂/L₀₂=σ₁/σ₂*L₀₁//L₀₂=2*2=4
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Ответ:
ΔL₂=ΔL₁/4
Объяснение:
σ=F/S
σ₁=F/S₁=F/0.5S₂=2σ₂ σ↑
S₁=0.5*S₂ S↓
ξ₁=ΔL₁/L₀₁ L₀₁=2L₀₂
ξ₂=ΔL₂/L₀₂
σ₁=EΔL₁/L₀₁= EΔL₁/2L₀₂
σ₂=EΔL₂/L₀₂= EΔL₁/L₀₂
σ₁/σ₂=2
ΔL₁/ΔL₂=σ₁*L₀₁/σ₂/L₀₂=σ₁/σ₂*L₀₁//L₀₂=2*2=4