3 ms·About 29 grams per person. (19300 kg/m^3 * 23 m * 23 m * 23 m)/7970000000 persons ~= 0.0294 kg/personby tpmx 4y agoAbout 29 grams per person. (19300 kg/m^3 * 23 m * 23 m * 23 m)/7970000000 persons ~= 0.0294 kg/person