a cup of coffee, a 10 gal aquarium, and bottle of ginger ale are on a
table. Which one has the greatest amount of air pressure on it?
2007-05-19 02:45:17 · 9 answers · asked by Saket S 1 in Science & Mathematics ➔ Engineering
tricky question!!! lets put the concepts to the work......
There is only air pressure over the aquarium. The gas above the pop
will be too high in carbon dioxide and the water vapour pressure above
a hot cup of coffee will be too high. Neither qualify as "air". If you
wait long enough and the coffe gets cold and the pop goes flat then
you can measure the air pressure (in kg per square meter) over each.
Due to thermal effects and drafts an instrument capable of measuring
the difference in height of a few inches would be confused by the
noise these effects would have. In effect the pressure is the same
over each object.They all have the same force per unit area but have different total
pressures as the total pressure is related to the total projected
surface area of the object.
p.s. the two glass sheet comment is nothing to do with air pressure.
Thats a cohesive force issue.
i hope u agree wid my answer....
2007-05-19 03:27:10 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Since pressure is force per area, all three have the same air pressure.
If the question were, "which object exerts the greatest pressure on the table?", the answer would be the aquarium.
2007-05-19 07:42:13 · answer #2 · answered by Thomas C 6 · 0⤊ 0⤋
while temperature is going up, the molecules comprising the air grow to be greater agitated. those agitated molecules are shifting around so they choose greater "elbow room", which takes up extra area than molecules that are particularly table sure, so the quantity of the air expands for that reason. as a results of fact the air molecules are forcing themselves greater aside, the outward rigidity will strengthen, forcing that distinctive mass of air to strengthen and take up extra area. If the growth is proscribed by potential of a balloon, the balloon will strengthen for that reason in keeping with the greater rigidity. This action makes that distinctive volume much less dense than an equivalent volume of cool air wherein the air molecules are shifting much less, so as that quantity will upward push above a cooler air mass. it particularly is how warm-air balloons upward push. desire that helps.
2016-12-11 13:59:36 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Pressure is force divided by area. They all have the same amount of pressure.
2007-05-19 02:53:39 · answer #4 · answered by Always Hopeful 6 · 0⤊ 0⤋
They will all have the same air pressure acting on them.
However, the TABLE will have the greater TOTAL force acting on its much larger area.
2007-05-19 05:31:05 · answer #5 · answered by Norrie 7 · 0⤊ 0⤋
if the ginger ale bottle is carbonated and the bottle has never been open, it would be the ginger ale. Otherwise they would all be the same.
2007-05-19 03:02:22 · answer #6 · answered by jsardi56 7 · 0⤊ 0⤋
*Air pressure will be same for all.
*if the levels of the all you have mentioned is different then the pressure will be maximum on the surface which is having lowest surface level.
p=f/a
p=specific gravity*head.
Head(air column) will be more for lowest surface level.
2007-05-19 03:30:20 · answer #7 · answered by Anonymous · 2⤊ 0⤋
Same pressure.
2007-05-19 03:02:29 · answer #8 · answered by rajan l 6 · 0⤊ 0⤋
one with the largest surface area has
2007-05-19 02:49:55 · answer #9 · answered by zebedos 3 · 0⤊ 2⤋