1.A landfill have space of 162,000 meters squared at avg depth of 10 m, 765 meters cubed of solid waste is dumped at the site 5 days a week. This waste is compacted to twice its delivered density. Estimate the expected life of the landfill in years.
2.The concrete cylinder 6 in x 12 in broke incompression at a load of 110000 lbs. Compute the crushing strength of concrete. Estimate the tensile strength and the modulus ofelasticity.