Physical formula of the second volume of the third grade

1, velocity: V=S/t\x0d\2, gravity: G=mg\x0d\3, density: ρ=m/V\x0d\4, pressure: p=F/S\x0d\5, and liquid pressure: p = (3), f float =G (floating and suspending) \x0d\(4), Archimedes principle: f float = G row = ρ liquid gV row \x0d\7, lever balance condition: F 1L 1 = F2L2 \ x0d \ 8, ideal slope. 1 1+0, work: w = fs = GH (lifting the object high) 12, power: p = w/t = Fv 66 16, pulley block efficiency: \ x0d \ (/kloc-) 2. Heat release: Q release = cm (t0-t) = cm δ t \ x0d \ 3, calorific value: Q = Q/m \ x0d \ 4, furnace and heat engine efficiency: η = q effective utilization rate /Q fuel \x0d\5, heat balance equation: Q release = Q absorption \ x0d \ Resistance: R=ρL/S\x0d\3, Ohm's Law: I = u/r \ x0d \ 4, Joule's Law: \x0d\( 1), q = i2rt Universal Formula) \x0d\(2), q = UIT =