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A system is said to be at a partial vacuum if it is at a negative pressure (pressure less than atmospheric pressure). When you use a straw, the partial vacuum created inside the straw is what causes your drink to travel up the straw and into your mouth.
A perfect vacuum would be a space with nothing in it and a temperature of 0 degrees kelvin. Practically, however, we can only achieve and work with partial vacuums or pressure differentials. Even what we call outer space is only a partial vacuum. Rule of thumb: Nature hates a vacuum.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoA vacuum means that the air has been evacuated so if the vacuum were perfect then there is nothing in there except empty space. The vacuum then insulates what is inside the flask from the environment so what is hot in flask will stay hot and what is cold will stay cold longer.
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Do microphones work in the vacuum of space?
According to the principles of physics, sound itself is unable to travel in a vacuum. Therefore, a microphone will be unable to amplify any sounds in a vacuum.
Can you give me a proposal of an investegatory project in physics?
liquid Reppelant Vacuum Broom cleaner
What has the author J Yarwood written?
J. Yarwood has written: 'High vacuum technique' 'Introductory atomic physics' -- subject(s): Nuclear physics
If two people were in a vacuum could they hear each other speak - This is a hypothetical question and assumes a true vacuum.?
No. Yes, provided it is a vacuum that they could survive. A true vacuum in which there is no matter of any kind is a real stretch of physics, and only really exists in theory. What we call a vacuum is really just a strong negative pressure. Matter is still present. Even in the "vacuum" of space, there's still some matter.Answer No. Sound waves will not travel through a vacuum. There is a physics lesson explaining why in detail on this website http://www.physicsclassroom.com/Class/sound/U11L1a.html
What is the space between planets?
We typically consider this space 'vacuum;' however, a newer physics model that ignores the 'renormalization' equations of standard physics is emerging which suggests that this vacuum is actually some 39 orders of magnitude denser than our calculations for a black hole, when the energy inherent in the vacuum is taken into account! Nassim Haramein will explain this 'theory' in the link.
Is vacuum matter?
In classical physics a perfect vacuum contains no matter.However in quantum physics the Heisenberg uncertainty principle prohibits such a condition, requiring that even a perfect vacuum must contain particles of both matter and antimatter being continuously created and annihilated, each particle existing for only a very short period of time.However in the real world creating a perfect vacuum is as impossible as reaching absolute zero temperature. Thus any practical vacuum will always contain very tiny traces of gas.
Where could one purchase vacuum cleaner chambers?
One can purchase vacuum cleaner chambers directly from the manufacturer where one bought the vacuum cleaner. Otherwise the chambers are available at Terra Universal, Laco Tech, Kimball Physics and the Home Shopping Network.
What is matter and vacuum?
In classical physics a perfect vacuum contains no matter.However in quantum physics the Heisenberg uncertainty principle prohibits such a condition, requiring that even a perfect vacuum must contain particles of both matter and antimatter being continuously created and annihilated, each particle existing for only a very short period of time.However in the real world creating a perfect vacuum is as impossible as reaching absolute zero temperature. Thus any practical vacuum will always contain very tiny traces of gas.
Are Freeman Dyson and James Dyson related?
No Freeman Dyson - Scientific physics positron guy Jame's Dyson Vacuum cleaner inventor
Why is velocity is generally used in physics?
Velocity is generally used in physics because one type of velocity,expressed by the letter v, is constant in vacuum that is the speed of light(186,282.4 miles/sec) and this constancy makes v important in establishing frames of references.
How do thermos work?
A thermos works with principle of Physics that vacuum is a pure insulator of heat. Thermos is made of two containers separated by a vacuum space which acts as an insulator of heat. Also the surface of thermos will be glassy which in turn helps in reduction of heat loss.
What has the author James Carlin Beam written?
James Carlin Beam has written: 'Investigations in the vacuum ultraviolet of a steady state nitrogen plasma' -- subject(s): Physics
