subject
Chemistry, 01.07.2019 10:50 elijahbravo7107

Your boss asks you to design a room that can be as soundproof as possible and provides you with three samples of material. the only information on each sample's label is the material's coefficient of absorption. the coefficient of absorption listed on sample a is 30%, on sample b is 47%, and on sample c is 62%. when your boss asks for your choice and the reasoning behind it, what would you tell him? a. sample a would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest. b. sample a would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. c. sample c would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. d. sample c would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 12:10
Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
question
Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
question
Chemistry, 22.06.2019 14:30
Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
Answers: 1
question
Chemistry, 22.06.2019 14:30
Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.
Answers: 1
You know the right answer?
Your boss asks you to design a room that can be as soundproof as possible and provides you with thre...
Questions
question
Mathematics, 25.05.2021 17:00
question
Mathematics, 25.05.2021 17:00
question
Mathematics, 25.05.2021 17:00
question
Mathematics, 25.05.2021 17:00
Questions on the website: 13722360