✉️ Why is the area of a circle π·r² (pi r squared)? – 🥇 Scalar Scientific Calculator App, Charts & Scripts
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Area of a circle - Wikipedia
prove that [2 pie r=n lambda] the circumference of the bohr orbit for the hydrogen atom is an integral multiple of the de brogli wavelength
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✉️ Why is the area of a circle π·r² (pi r squared)? – 🥇 Scalar Scientific Calculator App, Charts & Scripts
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