Explain experimental physics.
1 answer:
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Answer:
The mass of air stored in the vessel is 235.34 kilograms.
Explanation:
Let supossed that air inside pressure vessel is an ideal gas, The density of the air (), measured in kilograms per cubic meter, is defined by following equation:
(1)
Where:
- Pressure, measured in kilopascals.
- Molar mass, measured in kilomoles per kilogram.
- Ideal gas constant, measured in kilopascal-cubic meters per kilomole-Kelvin.
- Temperature, measured in Kelvin.
If we know that ,
,
and
, then the density of air is:
The mass of air stored in the vessel is derived from definition of density. That is:
(2)
Where is the mass, measured in kilograms.
If we know that and
, then the mass of air stored in the vessel is:
The mass of air stored in the vessel is 235.34 kilograms.
Answer:
511.1 J
Explanation:
We are given that
Mass of wood block=m=3 kg
Vertical distance,h=23 m
Horizontal distance =x=30 m
Distance traveled in downward direction y=40 m
Initial velocity,u=0
Where
By work energy theorem
Change in kinetic energy=Work done= mgh-W
Hence, the work done due to friction on the block as it slides down the ramp=511.1 J