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The air pressure that is usually pushing against every square inch of your body is how many pounds?
Wiki User
∙ 14y ago
15 lbs
Wiki User
∙ 14y ago
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How much pressure can bone withstand?
usually a lot of pressure but it depends on the bone. Example: It takes 12-16 pounds of pressure to break a knee.
What is the water pressure at 1000 feet in pounds?
About 460 pounds per square inch.
How do straws work?
Drinking liquid through a straw uses the invisible pressure of the atmosphere to move a column of liquid. The air all around us is under pressure, from the rest of the atmosphere above it pushing down. (This is about 15 pounds per square inch at sea level.) You are reducing the pressure at the top of the straw*. The air pushing down on the surface of the liquid will force the liquid up the straw. So you are technically not "pulling" the liquid, it is being "pushed" by the air.*When you suck on a straw, the diaphragm under your lungs drops down, reducing the pressure in your lungs. This reduces the pressure in your mouth and likewise at the top of the straw.Air Pressure ExperimentYou can show that the air has pressure by inhaling at the top of an empty plastic bottle (a two-liter soft drink bottle is perfect for this). The sides of the bottle will cave in as you remove air from the bottle.(see related question)
How many pounds per square inch is the force of air pressure?
Atmosphere pressure can be measured in pounds per square inch, and this varies depending on how far a location is above or below sea level. At sea level, atmospheric pressure equals 14.7 pounds per square inch (or psi).
What do you mean by calibration of a pressure gauge?
I used to do this for a living. The pressure guage is mounted on a testing machine (usually but not always a machine called a dead-weight tester) and the readings given by the pressure guage when known pressures are applied is noted. For example, a pressure of 300 pounds per square inch is applied and the guage reads 295 pounds per square inch when the pressure is rising, but might read 305 pounds per square inch when the pressure is falling. This difference in guage reading when pressure is rising to when pressure is falling is called hysteresis. A calibration certificate for the guage is issued showing the guage readings obtained at known pressures when pressure is rising and falling. In some cases, the guage readings may be very inaccurate and if the guage has some sort of adjustment mechanism, this may be adjusted to obtain more accurate readings.
What amount of pounds of pressure is pushing against a persons body at all time?
15 pounds of air pressure are pushing against every square inch of your body at all times.
What are you measuring when you are measuring pressure?
When you are measuring air pressure, you are measuring the force that the air is exerting outwards, on whatever you are using to compress it (since materials resist being compressed). For example, measuring the air pressure in a balloon is measuring the amount of force that the air is pushing against the material of the balloon. This is usually expresed in Pounds per Square Inch (PSI).
What are you measuring when you are measuring air pressure?
When you are measuring air pressure, you are measuring the force that the air is exerting outwards, on whatever you are using to compress it (since materials resist being compressed). For example, measuring the air pressure in a balloon is measuring the amount of force that the air is pushing against the material of the balloon. This is usually expresed in Pounds per Square Inch (PSI).
Pressure exerted by the air around us is called?
14.69 pounds per square inch (psi). 2,115.36 pounds per square foot. 19,038.24 pounds per square yard. 58,972,852,224 pounds per square mile. If you want to calculate the complete gravitational force of Earth, find the area (in square miles) and multiply it by 58,972,852,224. That will give you, in pounds, the complete gravitational force of Earth.
Why do objects placed in fluids experience a buoyant force?
All fluids exert pressure on the surface of any object in that fluid, but the pressure is not uniform over the surface of the object. Parts of the object that are deeper in the fluid will have more pressure from the fluid pressing against them than parts that are shallower. The amount of the object's surface that is being pressed down by fluid above it will be equal to the amount of surface being pressed up, but the pressure per unit area pressing up will be greater, on average, than the pressure that is pressing down.A 1 square inch column of salt water 1 foot tall weighs just under 0.45 pounds, so it exerts a pressure of (about) 0.45 PSI. That pressure will be in addition to the pressure of any fluid that is pressing down on the top of the water column, such as the atmosphere. Thus the pressure on the surface of the ocean is about 14.7 PSI and the pressure at a depth of 1 foot is about 14.7 + 0.45, or 15.15 PSI.If a cubic object 1 foot on each side was placed in the water with its top right at the surface the top of the cube would have 14.7 PSI * 144 square inches, or 2116.8 pounds of pressure pushing down on it. The bottom would have 15.15 PSI * 144 square inches, or 2181.6 pounds of pressure pushing up on it. The pressure on each side would equal the pressure on the opposite side, so there would be no net pressure pushing sideways. The difference in pressure pushing up and pressure pushing down would be 64.8 pounds, so there would be a buoyant force of 64.8 pounds pressing the object upward. Since the actual weight of the water column is a little bit less than 0.45 that actual buoyant force would be 64 pounds, which is the weight of 1 cubic foot of water. Thus the object is buoyed up by a force equal to the weight of the fluid it displaces.
How much pressure can bone withstand?
usually a lot of pressure but it depends on the bone. Example: It takes 12-16 pounds of pressure to break a knee.
How many pounds of pressure does it take to break your knee cap?
This depends on which way you are pushing. Your knee is a hinge joint and is made to flex and extend one way only. Pushing the hinge in the other way can be catastrophic and could be broken from upwards of 30 pounds.
What is The force pushing on a surface divided by the area of that suface?
Pressure. (Note that the force must be perpendicular to the surface.) Pressure can my measured in Pascals (N/m2), psi (pounds/in2), atmospheres, or a few other units.
What is 200 psi?
200 psi is a measurement of pressure. Pounds per square inch is what it stands for. Picture a square in then picture 200 pounds pushing on that (and every other) square inch. 200 psi is fairly high pressure. As an example, a car tire is ususally 32 psi.
The measure of the force with which air molecules are pushing on the Earth's surface?
This force is called atmospheric pressure, the force is measured per unit area because the bigger the area the more molecules hit. It is 14.7 pounds per square inch ("psi")
Does cholesterol have any bearing on normal blood pressure?
a normal blood pressure depends on your age and weight. I am 34 and weigh about 170 pounds and I have a very good blood pressure. The top number is usually around 105 and the bottom is usually around 75.
Weight of air pressing down?
Air pressure.
