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Hello and thanks for volunteering, I am not a student. I need to know if when passed through water, if a gas will experience a volume increase due only to the presence of water vapor. Assume that the water is kept well below boiling of course. I am aware of gas laws and partial vapor pressure of the water. But I can not find anything confirming a volume change or lack of change. To rephrase the question, will a gas experience a reduction in...

When the temperature of a gass is risen the kinetic energy of a gass rises. Why is that? If it's because the rising of velocity, then if we take two gasses with are in same temperature and are different in atomic mass, their velocities must be the same(same temp.)But because their masses are different the change of momentum when they collide with the wall of the container must be different.So the forse must be different. So the pressure...

a mass of 200kg is dropped on to a pile of  mass of 1000kg from a height of 2.5m and drives it into the ground 0.060m find A)the initial velocity of the pile and the driving weight immediately after impact B)the average resisting force exerted by the ground Hope you can help.Thank you   Answer Hello shaun, A) At a height of 2.5 m, the mass has potential energy PE = m*g*h Immediately before impact, that potential energy has...

Hi Jim, I am involved in a project and would like to drop a banner measuring 24' x 5'from a plane at an altitude of 700 ft.  The banner is made out of a lightweight, ripstop, coated nylon (similar to parachute material). It is also not a perfect rectangle; it is slightly arched. I am wondering if it is possible to create a floating and flipping effect as it descends to the ground. I do not want the banner to plummet back to...

I read in a book about WWII aerial bombing that American bombardiers were ordered to drop bomb loads that included both 250 lb. and 500 lb. bombs carried in the same airplane. They were assured by staff officers, against their own skepticism, that the bombs would fall at the same rate and NOT interfere with each other -- in other words, they would not collide while falling. As it happened, the aircrews' worst fears were realized and the...

Hi!    I'm into determining all the factors that are determining my existence. I read another question about centrifugal force by the earth's rotation being minute compared to gravity. I assume at the equator it's in one direction. I live in Vancouver, Canada. Am I right in thinking that the centifugal force on myself is not only East but North as well? I wonder if I would feel strange if I moved to...

Is it possible that an atom can radiate frequency of complementary color in hot condition of the color that it absorbed during cold condition? Answer The absorption and emission of an atom at a given frequency is the same. When hot, the atom will emit strongly at the same wavelength it absorbs at when cold. A good example is carbon dioxide at 4.2 micron wavelength, which absorbs strongly in the atmosphere (cold carbon dioxide), but is a...