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motikmotik
2 years ago
13

Were you surprised by the “pie data”? Is it true for you, your family, and your friends? Why or why not?

Engineering
2 answers:
Ne4ueva [31]2 years ago
7 0

Answer: i was not suprised because, it is something all people need to know to gai  knowledege about it.

Sergeu [11.5K]2 years ago
6 0

Answer:

No because it is something to gain knowledge of peoples lives.

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The difference between ideal voltage source and the ideal current source​
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An ideal voltage source provides no energy when it is loaded by an open circuit (i.e. an infinite impedance), but approaches infinite energy and current when the load resistance approaches zero (a short circuit). ... An ideal current source has an infinite output impedance in parallel with the source.
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The type of current that flows from the electrode across the arc to the work is called what?
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Direct current.

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3 years ago
A composite wall is composed of 20 cm of concrete block with k = 0.5 W/m-K and 5 cm of foam insulation with k = 0.03 W/m-K. The
wariber [46]

Answer:

4.8°C

Explanation:

The rate of heat transfer through the wall is given by:

q=\frac{Ak}{L}dT

\frac{q}{A}=\frac{k}{L}dT

Assumptions:

1) the system is at equilibrium

2) the heat transfer from foam side to interface and interface to block side is equal. There is no heat retention at any point

3) the external surface of the wall (concrete block side) is large enough that all heat is dissipated and there is no increase in temperature of the air on that side

{k_{fi}= 0.03 W/m.K

{L_{fi}= 5 cm = 0.05 m

{T_{fi}= 25 \°C

{k_{cb} = 0.5 W/m.K

{L_{cb}= 20 cm = 0.20 m

{T_{cb}= 0 \°C

{T_{m}= ? \°C = temperature at the interface

Solving for {T_{m} will give the temperature at the interface:

\frac{q}{A}=\frac{k_{fi} }{L_{fi} }(T_{fi} -T_{m})=\frac{k_{cb} }{L_{cb} }(T_{m} -T_{cb})

\frac{0.03}{0.05 }(25 -T_{m})=\frac{0.5}{0.2}(T_{m} -0})

15 -0.6T_{m}=2.5T_{m}

3.1T_{m}=15

T_{m}=4.8

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3 years ago
using the two transistor analogy to explain what happens when an SCR is supplied with some gate current.​
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Answer: g

Explanation:

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A liquid-liquid extraction process consists of two units, a mixer and a separator. One inlet stream to the mixer consists of two
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One inlet stream to the mixer flows at 100.0 kg/hr and is 35wt% species-A and 65wt% species-B.

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