An engineer decides to develop technology that will help decrease soundpollution due to highway traffic noise. What step of the engineering processes
did she just undertake?
A. Make a plan
B. Know the background.
C. Identify a need.
D. Test and evaluate.
Answers
Answer: identify a need
Explanation:
Final answer:
The engineer has executed the 'Identify a need' step in the engineering process, acknowledging a problem that could be improved with engineering - in this case, sound pollution from highway traffic.
Explanation:
The engineer in the scenario has just carried out the 'Identify a need' step in the engineering process. This step entails the recognition of a problem or the identification of a situation that could potentially be improved via engineering. In this case, the need is for a technological solution to mitigate sound pollution caused by highway traffic noise. This solution could drastically improve many people's quality of life, particularly those living near busy highways. The next steps in the process would be researching and brainstorming potential solutions, developing a blueprint or plan for the chosen solution, and then testing and evaluating the efficacy of the implemented solution against the identified need.
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CO2(s) is a solid.
CO2(g) means it is gas.
So they differ in their physical properties.
Physical propertiers means that they differ in their look.
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Answer:
See the answer and the resolution below
Explanation:
The equation of the decomposition of magnesium carbonate is as follows:
Mg C03 (white solid) ---> C02 (gas) + Mg= (solid)
To calculate the mass of carbon dioxide produced, the weight of 1 mol of this and 1 mol of MgC03 is calculated. Then a simple rule of 3 is made.
Weight 1 mol of MgC03= Weight Mg + Weight C+ 3x(Weight 0)= 24,305g+ 12,017+3x (15,999)= 84, 318g/mol
Weight 1 mol of C02= Weight C + 2x(Weight 0)=12,017+2x (15,999)= 44, 008g/mol
84, 319 g MgC03------44,008g C02
36,0 g MgC03------X= (36,0 g MgC03x44,008g C02)/84, 319 g MgC03= 18,8 g C02
Answers
The given mass of cobalt chloride hydrate = 2.055 g
A sample of cobalt chloride hydrate was heated to drive off waters of hydration and the anhydrate was weighed.
The mass of anhydrous cobalt chloride = 1.121 g anhydrate.
The mass of water lost during heating = 2.055 g - 1.121 g = 0.934 g
Converting mass of water of hydration present in the hydrate to moles using molar mass:
Mass of water = 0.934 g
Molar mass of water = 18.0 g/mol
Moles of water =
Alleles
Genotype
Phenotype
Dominant
Recessive
Incomplete Dominance
Codominance
Please define these words
Answers
Genes- A gene is the basic physical and functional unit of heredity. Genes are made of (DNA).
Alleles- Allele, also called allelomorph, any one of two or more genes that may occur alternatively at a given site(locus) on a chromosome.
Genotype- A genetic constitution of an individual organism.
Phenotype- The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
Dominant- To be in control
Recessive- is a Quality found in the relationship between two versions of a gene.
Incomplete Dominance- is an important concept in the study of genetics.
Codominance- is a relationship between two versions of a gene.
Hope this works :)
Genes-Adistancesequenceofnucleotides.
A.Class
B.Order
C.Family
D.Level