That sounds right, according to the famous toilet lid story: https://twitter.com/DrPhiltill/status/979583605637877760 https://twitter.com/DrPhiltill/status/9795

That sounds right, according to the famous toilet lid story: https://twitter.com/DrPhiltill/status/979583605637877760 https://twitter.com/DrPhiltill/status/979583605637877760 > 13. This is just conservation of energy. The initial potential energy was mass times height times gravity. Divide by the 1/20th second that it "rings" out the pressure waves (the sound), and that is acoustic power. Divide by surface area of the toilet bowl lid to get energy flux.