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Use this formula to compute the pressure of air pushing down with force of 25 newtons over an area of 5 meters?
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A cold boot is initiated by?
Pushing the power button on the computer
Is it impossible to fly?
No is isn't. If person(s) makes a ballistic suit well enough that there is more pressure pushing up on them then down they will be lifted by gravity its self. (Bernoulli Principle)Example - Persons jumping out of plains with their specified suits causing them to glide. eventually it will be possible to flying using suits almost alike to those now.
What is the difference between the velocity operated and pressure operated microphones?
Know your microphones - what is the difference between pressure, pressure gradient, and velocity microphones?David Mellor | November 30, -0001Microphones work on the principle of pressure, pressure gradient, or velocity. If you don't know the difference, then you can't yet call yourself a sound engineer.This is something from the text books. Actually you don't have to know this to be a sound engineer - the proof of that is the 90% of sound engineers that don't know it! Yet a little theory never hurt anyone. And if you know how things work in theory, then you can apply them better in practice.There are two basic types of microphone - omnidirectional and figure-of-eight, which can be made in either dynamic or capacitor forms. Cardioid and hypercardioid microphones are hybrids, combining features of both the omni and figure-of-eight.The omnidirectional microphone works on the pressureprinciple. The diaphragm, which picks up sound vibrations in the air, is completely open at one side, but completely closed at the other.The sound vibration is either pushing the diaphragm against the fixed pressure of the air on the other side, or it is reducing the pressure on the front of the diaphragm allowing the pressure behind to push it out.One of the features of pressure in a gas is that it pushes equally in all directions. "Equally in all directions"? That makes the mic omnidirectional then.[For the sake of completeness, it should be mentioned that there is a tiny hole in the capsule to the rear of the diaphragm. This is so the microphone can compensate for long-term variations in air pressure. The hole is too small to affect its sound characteristics.]The figure-of-eight microphone on the other hand has both sides of the diaphragm fully open to the air. So it doesn't compare the incoming sound pressure with a fixed pressure on the other side of the diaphragm like the omnidirectional microphone. Instead it compares the pressure of the sound wave on one side with the pressure of that same sound wave after it has traveled through to the other side.Yes, it is a tiny difference in pressure, but strong enough to move the diaphragm.The difference in pressure between the front and the back of the diaphragm depends on the angle of incidence of the sound wave. In the extreme, if the sound arrives from the side of the diaphragm, then the pressure will be the same at the front and the rear, therefore the diaphragm will not move and there will be no output.Lastly, the velocity microphone... it doesn't exist! However you will see the term used frequently, particularly in relation to ribbon microphones.A velocity microphone, if it existed, would respond to the actual velocity of the air molecules striking the diaphragm.For this to happen though, the diaphragm would have to be so light that it could respond almost instantaneously, and so thin that there was no pressure difference between the two sides of the diaphragm. In practice, the diaphragm is too heavy to acquire the velocity of the air molecules and it has significant thickness.But a microphone that doesn't make it as a velocity mic, because its diaphragm is too heavy and thick, is still sensitive to pressure gradient. So in practice, these microphones are pressure gradient mics.So now you know it - the difference between pressure, pressure gradient and velocity microphones.
How explain the terms stress and strain?
Think of stress as bending or pushing down upon an object, where as strain is more like stretching a rubber-band almost to its limit, or the stress of a bridge holding up.
What are the capabilities of sap?
"sap" can also stand for Separate Audio Program in TV broadcasting. It is a different language sound track added to show. Pushing the sap button on most remotes will bring up the other soundtrack.
What is a demonstration of newtons first law?
That you are pushing the earth down while the earth is pushing you up, so you stay where you are.
Two forces act on the same object. One force is pushing due east with a force of 6 newtons and the other is pushing due north at 8 newtons. What is the resulting force?
10 newtons NE. a little more north than east
A 20 N falling object encounters 4 N of air pressure what is the magnitude of the net force on the object?
The object experiences 20 newtons pulling it down due to gravity. But it also experiences 4 newtons air resistance pushing it up. 20 - 4= 16 newtons net downward force on the object.
What is the force of air molecule's pushing on an area?
The pressure of the air. This is traditionally expressed (at least in the US and UK) in pounds per square inch, but with the SI system it is in Newtons per square meter, or some multiple of this.
The force pushing on a surface or area?
Pressure
What can pressure be when pushing down equals the pressure pushing up?
The pressure is balanced but not blank. There is still pressure on both side doing on to the wall.
What is pushing of air called?
The pushing force of air is called air pressure.:)
If the pressure of the gas pushing down on the liquid is 100 mmHg what will be the pressure of the dissolved gas molecules pushing up out of solution?
100
What is pressure and its units in metric system?
Pressure is the ratio of a force acting over (pressing on, or pushing against) a certain area. Pressure is measured in pascals, named after the 17th century French scientist Blaise Pascal. One pascal (Pa) is the pressure from a force of one newton(N) pressing on an area of one square metre (m2). Pa = N/m2. Five newtons acting on one square metre would be five pascals. Five newtons acting on two square metre would be two and a half pascals. Five newtons acting on five square metre would be one pascal.
What force is pushing on a surface or area?
Pressure.
What can you say about an object at rest pulled in opposite directions by unequal forces?
An object at rest pulled in opposite directions by unequal forces will start to move in the direction of the net force. For example, if I have a chair, and I'm pushing with 10 newtons to the right, and my sister is pushing 5 newtons to the left, the net force is 5 newtons to the right. Therefore, I win, and the chair moves to the right, in the direction of the net force.
How does pressure vary with area if force is applied?
Pressure is defined as force per area or P = F/A. So, if I push my hand against a wall with the force of 10 newtons, I am dispersing that 10 newtons over the area of my hand. If my hand is say 7in * 4 inches, that would give a total area of 28in^2. The pressure I am exerting on the wall would be P = F/A = 10 Newtons/(28in^2) = .36 N/in^2. If instead of pushing the wall with my hand, I push a nail against the wall, I am now applying the same 10 newtons of force, but my area is a fraction of the size. Since A goes down, pressure will go up. So now, my area may be A = 0.1in^2. P = F/A= 10Newtons/(.1in^2) = 100 N/in^2.
