How heavy is a vacuum?
When vacuuming the pool why would the pressure be so heavy it sticks to the bottom of the pool and then loses pressure?
As you vacuum the bottom of a pool you pick up a lot of fine dust and other material it is not unusual for a filter to block up while you are vacuuming. cleaning the filter or… a brief backwash will probably fix the problem RB. The answer above did not address the question.. The vac head needs to have the wheels adjusted if it is a wheeled vac head. If the vac head is a brush model then you need to reduce the suction some. To do that you need to open the 2nd skimmer some -if you have one. Otherwise, you have to somehow throttle down the suction when you vac pool.. I had a similar problem with my vacuum in a vinyl pool. The head was too close to the liner due to the bristles being worn down. Replacing this with a vacuum head that has both casters and bristles made vacuuming much easier and more effective (no more wrestling with the vacuum).. http://www.walmart.com/catalog/product.do?product_id=10927854
A "vacuum" is a state of emptiness or a void (Latin vacuus ,from vacare , to empty). Classically, it is used to denote a space absent of matter, or ofair, as in outer space…. A "pure vacuum" (or complete vacuum) is a state of containingabsolutely no matter, which only theoretically exists. A vacuum cleaner is a cleaner that uses electricity. Vacuums suckup dust from the floor and they put it in a bag where it keeps allof the dust.
In space both dark matter and dark energy are believed to be in the vacuum. The general answer is nothing-but light rays can pass invisibly through it. .
It will sound kinda silly, but I use a leaf blower in my car, under the seats, and it will blow out all the crud that the vacuum can't reach! Just open all the doors and you c…an blow out every corner and crevace even in the trunk and glove box. Use regular vacuum afterwards. I even used it under my bed once (after opening window and removing screen).
There are several units of measure to use while dealing with vacuum. The absolute units start from full vacuum then approach atmospheric pressure. The "Gauge" ones use atm…ospheric pressure as a baseline- but Atm. Pressure varies with each day, with altitude, temperature and even with Hurricanes. Some absolute units are: Torr, Millitorr, Mbar Some "Gauge" units are: "Hg, Psig, "H20 (inches of water) For more info see: http://en.wikipedia.org/wiki/Pressure_measurement
A heavy object and a light object are dropped from rest at the same time in a vacuum The heavier object will reach the ground?
They will hit the ground at the same time, since there is no wind resistance in a vacuum
What kind of a question is this it doesnt make any sense
In a vacuum there is no matter. A vacuum is the absence of mass in a given volume of space, so an evacuated space has nothing material in it. There may be electromagnetic en…ergy of some kind or another, however. About the most perfect vacuum we know of is in intergalactic space. In that space, which is the space between galaxies, there is very little matter. Perhaps only a few atoms (and probably of hydrogen) in a given cubic meter is about all that we think is out there. But light and microwave background radiation will be present. In a partial vacuum, which is all that we are able to create, there would be a number of atoms of stuff there owing to the imperfections of our equipment. A link can be found below for more information. laws of physics
\na vacum works with the tranny to Shift an automatic vehicle
Vacuum is measured in inHg or inches of mercury and a true vacuum is anything below zero on this scale...for reference normal atmospheric pressure or air pressure is about 14.…7 inHg so anything less than that could be expressed as a vacuum or less than atmospheric pressure if above zero but less than 14.7 inHg...you can measure this with a vacuum gauge that you can get at any autoparts store but you can feel a vacuum as a suction just like your vacuum cleaner....So a vacuum is anyththing zero inHg or below and a partial vacuum is anything between zero and 14.7 inHg.
If you created a vacuum filled air balloon sized ball able to withstand ground level air pressure would it weight heavy or lighter than the air around it?
By definition, anything 'filled with vacuum' would weigh nothing, as a vacuum means an area that contains no matter. Since the balloon would need matter in it to weigh anythin…g, a vacuum balloon would be lighter than the heavier air around it, as air is made of matter.
Weight has nothing to do with how fast things fall, only wind resistance. Take two 16 ounce soda bottles, open one drink eight ounces. The unopened bottle is twice as heavy as… the opened bottle. Close the bottle you just drank half of and drop them at the same time from a tall building, they will hit the ground at the same time. That is because gravity is a constant and the velocity of any falling object is 9.8 meters per second/per second. Acceleration is the same for all objects at 9.8m/sec/sec. Acceleration due to gravity near the earth's surface is the same for all objects regardless of their mass. This is because acceleration is inversely proportional to mass: a = F / m If you substitute the "force of gravity" equation above for F in this simple equation, and assume m here is m1 there, you'll find you have m1 (mass of the falling object) on both sides of the fraction, so they cancel out - acceleration due to gravity doesn't change with the mass of the object. But the force most definitely does. Force and acceleration are two very different things. Confusing them leads to wrong answers and further confusion in later topics.. Read more: http://wiki.answers.com/Q/What_object_falls_faster_a_heavy_object_or_a_light_object#ixzz22xGPifUi
Manifold vacuum usually. There may be some instances where someone reworked a distributor to arrive at a specific timing curve under load using ported vacuum with the vacuu…m advance, but this would be rare as most people would re-curve their distributor by changing advance weights and springs and would limit the advance built into a distributor so they could use more initial timing without having the total timing go over 36-40 degrees when the engine is revved up and all advance is in.
A heavy and light objects are dropped from the rest at the same time in a vacuum the heavier object will reach the ground?
The heavy object will reach the ground at the exact same time as the lighter object (if they were dropped at the same time).
Vacuum is required in vacuum tubes, because they are used to manipulate a flow of electrons between the cathode and the plate (anode). Air would get in the way, and it would a…lso contribute to early burnout of the filament.
They both fall at the same rate. This is because they are both only acted upon by one force in the vacuum- gravitational acceleration. The mass, size or shape of the object do… not influence the object's motion in a vacuum.