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50+ years ago one-piece solid lumber beams were harvested and plentiful. Due to lumber supply and very high prices, new engineered beams were developed and are very common today.
Your task is to research and compare/contrast glue-lam beams, plywood (how it is made and what it has replaced), and engineered lumber. Include what they are made of, size vs. solid wood beams/materials, overall prices, and the pros/cons. You may include any other information that you feel is relevant.
Google searches may include: Engineered Beams vs. Sawn Lumber Floor Joists Boise Cascade
What is the difference between a hypothesis and a theory? a hypothesis is a proposal that has been tested extensively, whereas a theory is an initialy stated proposal a hypothesis is a conclusion made after a theory was tested words hypothesis
when a weather balloon started to ascend the temperature was 28degc and the pressure 9064 kpa. if the maximum
The initial DO of the mix is 9.0 mg/L. After 5 days, the DO is 4.0 mg/L. After a long period of time, the DO is 2.0 mg/L, and it no longer seems to be dropping. Assume nitrification has been inhibited so the only BOD being measured is carbonaceous..
Calculate the volume of 1.00 M nitric acid needed to react completely with 25.0mL of 1.84 M calcium hydroxide
what is the actual yeid of bromobutane with the area of 750 and a theriotical of 100%
A solution is prepared by mixing 5.00 g of compound Z (molar mass 15.00 g/mol) in 100.0 ml of water. The density of the solution is 1.09 g/ml. Calculate the molarity of the solution.
when a nitrite containing sample with a mass of 3.000 g was analyzed 16.65 ml of 0.1500 m na2s2o3 solution was required
An understanding of Le Chatelier's principle is fundemental to the study of chemistry and helps us to understand everyday situations.
If you had a mixture of benzoic acid (C6H5CO2H) and biphenyl (C6H5C6H5), how would you purify them based on solubility/recrystallization
What concentration of the barium ion, Ba^2+, must be exceeded to precipitate BaF2 from a solution that is 1.00*10^-2 M in the fluoride ion, F^- ? Ksp for barium fluoride is 2.45×10^-5.
draw the orbital-energy diagrams and use the spectrochemical series to show orbital occupancy and identify ehether the
Write a ratio that compares the rate of diffusion for carbon monoxide gas to the rate of diffusion of oxygen gas.
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