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- ω=√ℓgω=ℓg\omega=\sqrt{\frac{\ell}{g}}
- ω=2π√gℓω=2πgℓ\omega=2 \pi \sqrt{\frac{g}{\ell}}
- ω=√gℓω=gℓ\omega=\sqrt{\frac{g}{\ell}}
- ω=2π√ℓgω=2πℓg\omega=2 \pi \sqrt{\frac{\ell}{g}}