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Gunpowder residue is most likely to show up where on a shooters hands
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Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
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At a 200 meter swimming competition bill got a personal record of 45 secomda and time was 5 secomds...
Mathematics, 28.07.2019 06:30
Mathematics, 28.07.2019 06:30