Question

explain Pascal pressure ​

Answer 1

Answer:

⭐You have a pressure of 1 Pascal when a force of 1 Newton is applied on 1 square meter.

⭐A Newton, that’s more or less the weight of an apple on the surface of the Earth.

⭐To give you an idea, the atmosphere constantly applies about one hundred thousand Pascals of pressure on you.

⭐Yep. That’s like one hundred thousand apples per square meter. Or about the weight on Earth of a mass of 10 tons.

⭐This is why you can’t manually open doors in your average airliner when at cruising altitude.

⭐The pressure outside is very low (about 20% of what it is at sea level) and the cabin is pressurized at about 80% of the pressure at sea level. So you get a pressure difference above half of the atmospheric pressure at sea level.

⏩Now on a B737 the doors are usually 1.83∗0.86m2 which is roughly 1.5m2.

⭐This means the airplane’s pressure is pushing the door against the frame with the equivalent force of something that has a mass of 7.5 tons at the surface of the Earth.

⏩Anyway, the Pascal is rather a small unit.

⭐According to Wikipedia, the pressure exerted by a one dollar bill lying flat on a surface (at the surface of the Earth) is around 1Pascal.

⭐A light breeze is already 10 Pascals.

Answer 2

Explanation:

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre.It is named after the French polymath Blaise Pascal.

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre.It is named after the French polymath Blaise Pascal.Common multiple units of the pascal are the hectopascal (1 hPa = 100 Pa) which is equal to one millibar, and the kilopascal (1 kPa = 1000 Pa) which is equal to one centibar.

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre.It is named after the French polymath Blaise Pascal.Common multiple units of the pascal are the hectopascal (1 hPa = 100 Pa) which is equal to one millibar, and the kilopascal (1 kPa = 1000 Pa) which is equal to one centibar.The unit of measurement called standard atmosphere (atm) is defined as 101325 Pa. Meteorological reports in the United States typically state atmospheric pressure in millibars.In Canada these reports are given in kilopascals.