Because alcohol can burn in air, it can be used as fuel. The chemical equation of alcohol combustion

Because alcohol can burn in air, it can be used as fuel. The chemical equation of alcohol combustion

C2H5OH + 3O2 = ignition = 2co2 + 3H2O

Conversion of some volume units

&#Cubic meter (M3) liter (L, DM3) cubic centimeter (cm3, ML, C.C) cubic foot (FT3) cubic inch (in3) cubic meter (M3) 110310635.31476.10237 × 104 liter (L, DM3) 10-31103.53147 × 10-261.0237 cubic centimeter (cm3, ML, C.C) 10-610-313.53147 × 10-56.10237 × 10

12 cubic decimeter = M & sup3;

1 cubic meter = 1000 cubic decimeter
1000 cubic decimeter = 0.001 cubic meter
12 cubic decimeter = 0.012 cubic meter

Why can the gravitational formula only calculate the mass of the central celestial body?
Because the motion is relative, the orbiting celestial body is also the central celestial body. For example, the Earth Moon system regards the moon as stationary, does not the earth go around the moon?

Because when one celestial body 1 circulates around another celestial body 2, gravitation provides centripetal force
GM1*M2 / r ^2＝M1*V＾2 / r
As you can see, M1 is reduced on both sides of the equation, leaving m2 at the center
So we can only calculate the mass of the central celestial body

Nine tenths M & sup3; = () cubic decimeter

9 / 10 m3 = (900) cubic decimeter