Mass of the lightest allowable regulation baseball

Mass of the lightest allowable regulation baseball (142 g)

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Mass of the lightest allowable regulation baseball (142 g)

is 1/5000 of Mass of IndyCar (excl driver or fuel) on speedways (712 kg)...more
is 1/5000 of Mass of lightest allowable Formula 1 racing car (incl driver excl fuel) (702 kg)...more
is 1/4000 of Mass of a mature thoroughbred racehorse (570 kg)...more
is 1/2000 of Mass of an adult male North American Black Bear (280 kg)...more
is 1/500 of Mass of largest gold nugget ever found (71 kg)...more
is 1/500 of Mass of a domestic washing machine (70 kg)...more
is 1/250 of Mass of Pedal Harp (orchestral instrument) (36 kg)...more
is 1/250 of Mass of a full-grown Labrador dog (35 kg)...more
is 1/10 of Mass of an average coconut (1.44 kg)...more
is 1/10 of Mass of an ostrich egg (approx) (1.4 kg)...more

If this was a standard unit ...