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1 vote
1 answer
170 views

How can we take pressure of ideal gas be equal to pressure of atmosphere if container is open

I can better put my doubt in form of problem: The temperature of a gas placed in an open container is raised from $27^o$ C to $227^o$ C. The percent of the original amount of the gas expelled from the ...
Prateek Mourya's user avatar
0 votes
2 answers
39 views

Sunlight-powered device set to change world: will it work? [closed]

Vast areas of desert sand are being shone on upon by the sun. Now that's some ENERGY! Using this proposed apparatus: Sunlight over large area is concentrated on steam chamber, where water turns into ...
El Flea's user avatar
  • 340
0 votes
1 answer
76 views

Importance of fluid mechanics and mechanics in physics and pipes

How does mechanics help prevent the pipes from bursting? How does it link to the pressure of a pipe? How does fluid mechanics link to physics when its about the liquid phase of chemical processes?
Basmalah 's user avatar
0 votes
1 answer
329 views

Is force due to pressure equally distributed?

Pressure is defined as: $$P=\frac{F}{A}$$ My question is what if we want to find the total force in area of $\frac{A}{2}$. Would be equal to $\frac{F}{2}$? I think that is not true unless we know that ...
Antonios Sarikas's user avatar
2 votes
1 answer
84 views

Why don't comets just vapourize away?

As far as I know, comets are in a freefall around the sun. That would mean, net acceleration due to gravity is almost zero because R =m (g-a) where R is reaction force. Now pressure is force per ...
user68153's user avatar
0 votes
1 answer
153 views

Thermofluid mechanics inclined plane

As shown in the attacked image, a tank has an inclined wall at an angle of 450 to the horizontal. On this wall, there is a 1m square door that is hinged at A and has a simple latch at B. The distance ...
Mark's user avatar
  • 11
1 vote
1 answer
7k views

Mechanical equilibrium: thermodynamics and classical mechanics

A similar question was asked here but mine is a bit different. In thermodynamics, a mechanical equilibrium is defined as a uniform pressure (for a fluid). In classical mechanics, equilibrium is ...
anderstood's user avatar