Mass of a regulation tennis ball

Mass of a regulation tennis ball (57 g)

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If Mass of a regulation tennis ball (57 g) was a standard unit ...

Mass of an adult male North American Black Bear (280 kg)...more would be 5000 x Mass of a regulation tennis ball
Mass of a packed suitcase (maximum checked-in British Airways) (23 kg)...more would be 400 x Mass of a regulation tennis ball
Mass of a brick (2.9 kg)...more would be 50 x Mass of a regulation tennis ball
Mass of an average coconut (1.44 kg)...more would be 25 x Mass of a regulation tennis ball
Mass of an ostrich egg (approx) (1.4 kg)...more would be 25 x Mass of a regulation tennis ball
Mass of the lightest allowable regulation baseball (142 g)...more would be 2.5 x Mass of a regulation tennis ball