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Shalnov [3]
3 years ago
6

R-744 refrigerant is bad why

Engineering
1 answer:
mars1129 [50]3 years ago
6 0

Answer:

Explanation:

R-744 is seen as the 'perfect' natural refrigerant as it is climate neutral and there is not a flammability or toxicity risk. It is rated as an A1 from ASHRAE. While it is non-toxic there is still risk if a leak occurs in an enclosed area as R-744 will displace the oxygen in the room and could cause asphyxiation

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The Bureau of Labor and Statistics predicted that the field of biomedical engineering would increase by 62 percent over the comi
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4 0
3 years ago
A chemistry student accidentally drops a large mercury thermometer and it breaks. The thermometer contained 2 grams of mercury (
loris [4]

Answer:

23.1 35f

Explanation:

not dumb

4 0
3 years ago
What is the first step of the engineering design process?
scoundrel [369]

Answer:

The first step  is to identify the need and constraints

Explanation:

5 0
3 years ago
Read 2 more answers
If an elevator repairer observes that cables begin to fray after 15 years, what process might he or she use to create a maintena
otez555 [7]

Answer:

inductive reasoning

Explanation:

Inductive reasoning is one of the type of reasoning method in which generalized consequences are derived from limited observations. By observing few data, general conclusions are drawn. The conclusions drawn are false in inductive reasoning. In the given situation, the conclusion drawn by the elevator repairer has been drawn by inductive reasoning. His observation of some cables led him to draw the conclusion about all the cables. The result of the reasoning is false.

5 0
3 years ago
While there are many ways to solve this problem, one strategy is to calculate the volume of any metal's unit cell given its theo
IgorC [24]

Answer:

V_{c}=1.396x10^{-28}  m^{3} /unit.cell

Explanation:

z = number of atoms

M = Molar mass of zirconium

N = Avogadro’s number

Vc = volume of zirconium unit cell

d = density

z=12x\frac{1}{6}+2x\frac{1}{2}+3=6

z = 6 atoms per unit cell

M = 91.224 g/mol

N = 6.023x10^{23}  atoms/mol

d = 6.51g/cm^{3}

V_{c}=\frac{zxM}{dxN}

V_{c}=\frac{6x(91.224g/mol)}{(6.51g/cm^{3}) x(6.023x10^{23}atoms/mol) }

V_{c}=1.396x10^{-22}  cm^{3} /unit.cell

V_{c}=1.396x10^{-28}  m^{3} /unit.cell

8 0
3 years ago
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