We need to fill a base to an outdoor umbrella with sand and water to weigh 190 pounds. How much sand and water will we need? What kind of sand?
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1 Answer

get the cheepest sand yukan find

wet sand density=2.08 times dens as water

water=62.43 pounds/kubik foot

190 pounds / (2.06*62.43)...190 / 128.6

=1.477 kubik ft

get 2
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