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erma4kov [3.2K]

3 years ago

12

What is pessimism technology

1 answer:

MrMuchimi3 years ago

4 0

Answer:

Technological pessimism is the idea of depression and grief that technology brings upon society. Many people see technology as helpful. Many more see it as a characteristic of this world that is benefitting the future in means that span across the board.

Explanation:

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Water from the Earth's surface turns into a gas, or water vapor, when it is warmed and

bagirrra123 [75]

Answer:

Evaporation.

Explanation:

Evaporation is the stage of the Water Cycle where water turns into water vapor. The steps following Evaporation in order include Condensation, Precipitation, and Transpiration.

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A device that transforms electrical energy to mechanical:

xxTIMURxx [149]

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electric motor

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3 years ago

Training is a way for employers to provide ____ to enable employees to protect themselves and others from injuries.

Andreyy89

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Training is a way for employers to provide tools to enable employees to protect themselves and others from injuries.

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3 years ago

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The exhaust steam from a power station turbine is condensed in a condenser operating at 0.0738 bar(abs). The surface of the heat

lozanna [386]

Answer:

Percentage change 5.75 %.

Explanation:Given ;

Given

Pressure of condenser =0.0738 bar

Surface temperature=20°C

Now from steam table

Properties of steam at 0.0738 bar

Saturation temperature corresponding to saturation pressure =40°C

$h_f= 167.5\frac{KJ}{Kg},h_g= 2573.5\frac{KJ}{Kg}$

So Δh=2573.5-167.5=2406 KJ/kg

Enthalpy of condensation=2406 KJ/kg

So total heat=Sensible heat of liquid+Enthalpy of condensation

$Total\ heat\ =C_p\Delta T+\Delta h$

Total heat =4.2(40-20)+2406

Total heat=2,544 KJ/kg

Now film coefficient before inclusion of sensible heat

$h_1=\dfrac{\Delta h}{\Delta T}$

$h_1=\dfrac{2406}{20}$

$h_1=120.3\frac{KJ}{kg-m^2K}$

Now film coefficient after inclusion of sensible heat

$h_2=\dfrac{total\ heat}{\Delta T}$

$h_2=\dfrac{2,544}{20}$

$h_2=127.2\frac{KJ}{kg-m^2K}$

$So\ Percentage\ change=\dfrac{h_2-h_1}{h_1}\times 100$

$=\dfrac{127.2-120.3}{120.3}\times 100$

=5.75 %

So Percentage change 5.75 %.

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3 years ago

WIL MARK U AS BRAINLIEST HELP PLZ

ss7ja [257]

Answer:

The 1st one:Your natural ability

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