Answer:
W=1259W=1.2Kw
Explanation:
Hello!
The first step to solve is to find the enthalpies at the entrance (state 1) and the exit of the washer, for this we use the thermodynamic tables.
Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)
through prior knowledge of two other properties such as pressure and temperature.
state 1
h1(T=20C,P=1atm)=83.93kJ/kg
state 2
h1(T=23C,P=1atm)=96.48kJ/kg
now we find the mass flow remembering that it is the product of the flow rate by the density=
m= mass flow
q=flow=0.1l/S=0.0001M^3/s
α=Density=1000kg/m^3
m=0.1kg/s
Now we draw the energy flows in the washer (see attached image) and propose the first law of thermodynamics that states that the energy that enters must be equal to the one that comes out
where
m=mass flow
h=entalpy
v=speed
W=power input
g=gravity
H=height
SOLVING FOR W
W=1259W=1.2Kw
Fg=m•g || IE: Weight = mass x gravity
Therefore, the relationship are as follows:
mass and gravity are inversely proportional
mass and weight are directly proportional
weight and gravity are directly proportional
The atom is to small to see so we can't identify it.
The meridian directly opposite the Prime one ... roughly down the middle of the Pacific Ocean ... is the meridian of <em>180° longitude, both East and West.</em>
Technically, it should also be the International Date Line, but it's not. The International Date Line has been defined with several kinked segments in it, in order to avoid having it cut through the few islands that lie along 180°.
If it were allowed to do that, there would be nations that would have two different calendar dates on the same island. Kids who live on one side and go to school on the other side would constantly be either cutting school or showing up on Saturday, and people would be missing their dental appointments on the other side. Much easier just to put a kink in the International Date Line so that whole country is on the same calendar date.