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Earth's Weight

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

 Puzzle ID: #2892 Fun: (2.23) Difficulty: (0.85) Category: Science Submitted By: 204_BLaZe_41 Corrected By: krishnan

It is estimated that the earth weighs 6 sextillion tons. How much more would the earth weigh if one sextillion tons of concrete and stone were used to build a large wall?

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 missie Apr 01, 2002 Good one! bighippo4 Apr 04, 2002 That had to be the easiest teaser I have ever done! kendroberts Apr 06, 2002 I think the earth's weight would drop, because you are moving mass away from its center. The material in the wall weighs less then the same material a few feet lower (in the ground.) Or, maby the weight of the earth (the net force on it from its own gravity) is zero both before the wall and after? Mogmatt16 Apr 16, 2002 That would be a big wall............ Christopher Apr 25, 2002 Hey! Good job kendrobert, The question should say mass and not wheight. The same with the answer. Still, good job BlaZe (user deleted) Aug 14, 2002 Assuming you took the stuff from earth's own mass, what would you build the wall on? electronjohn Nov 14, 2002 That would be a Great Wall. Glenbo May 22, 2003 This is more of a Trick teaser drussel3 Jun 11, 2005 Good one. jsdodgers Oct 07, 2007 Kendroberts, the density of a material changes by depth, not its weight! jsdodgers Oct 07, 2007 and also that was the easiest teaser ever Gerrard10 Nov 03, 2009 Fun, though I think trick works. ;) RICHARDYAMA Sep 17, 2016 I believe the earth would weigh a little less. In constructing the wall, dust and gases would be created. MOST of the dust would fall back to earth, but SOME of the gases would dissipate into the atmosphere.