Answer:
Power consume by compressor=113,726.87 KW
Explanation:
Given:
Actually compressor is an open system, so here we will use first law of thermodynamics for open system .
We know that first law of thermodynamics for steady flow
We know thatand we take the air as ideal gas.
System is in steady state then mass flow rate in =mass flow rate out
Mass flow rate=
So mass flow rate = ,
=1.23×200×2 Kg/s
=541.17 Kg/s
,
=80.07 m/s
Enthalpy of ideal gas h=
So
Now by putting the values
Here Q=0 because heat transfer is zero here.
W= -210.15 KJ/kg
So power consume by compressor=541.17×210.15
=113,726.87 KW
Answer: Advertising acts in a method similar to a fee. People who watch TV broadcasts must watch ADs. TV stations turn this into money by selling airtime to advertisers.
Explanation:
A non-rival good is a good whose consumption by one person does not reduce the remaining quantity available. An example is a street light.
For non-excludable goods, it is impossible to prevent everyone from enjoying the benefits of the good. An example is a lighthouse. This is where the free rider problem comes in.
A free rider is someone enjoying the benefits of a good without paying for it. When a good is both non-rival and non-excludable, it is convenient for consumers to enjoy the benefit without paying for it.
If TV broadcasts are both non-rival and non-excludable, everybody can choose to become a free rider. Advertising can solve this problem by converting free riders to potential buyers of goods or services advertised during broadcasts. This way, stations can generate revenue by selling airtime.
Answer: Foundries
Explanation: Casting is the method of making the liquid material to be shaped into solid form by being poured in a mold and having a hollow cavity . The liquid then turns into a solid state and this is known as casting. the casting odd metal is usually carried out in different shapes by the help of furnaces ,gases, molds etc.This process is usually performed in the certain industries known as foundry.
Answer:
The risks associated with the handling of liquid hydrogen are fire, explosion, asphyxiation and extremely low temperature exposure.