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  • How is formula for converting pressure from mmHg to Pa derived?
    Today my younger brother asked me from where does the 1 Pa = 0 00750061683 mmHg formula for mercury barometer come He needs a way to derive it, or an academic source which can be cited After d
  • fluid dynamics - Will just the increase in height of water column . . .
    It may appease the mind slightly to note that drawing a mere liter of water from your tank would drop the pressure from 981kPa down to just 9 81kPa On the other hand in a 100m high tower with a 1m^2 cross section throughout, drawing a liter of water from the tank would hardly reduce the pressure at all So although the pressure depends on the height of the water column and not the cross
  • weight - Where on Earth does the mass of 1 kg actually produce a 1 kg . . .
    Let's look at some widely used units of pressure: Pa, Bar, atm, kgf cm², mmHg, mmH₂O The first two are based on the SI system Numbers 2-4 (Bar, atm, kgf cm²) are within a few percent of each other but all are widely used The last three on the list all depend on the value of standard gravity in their definition
  • Question #eb2c2 + Example - Socratic
    The SI unit of pressure is the Pascal (Pa), and I will show some conversions from other non-SI units to Pa hereunder 1 Kilopascal (kPa) = 1000 pascal (Pa), ie 1kPa=1000Pa since kilo is the SI prefix for 10^3 Thus to convert from KPa to Pa, multiply by 1000 Example, 101,3kPa=101300Pa I have used this specific example since this represents standard air pressure at sea level and is also given
  • Water in vacuum (or space) and temperature in space
    The atmospheric pressure at this altitude drops to about 0 032 Pa (wikipedia), which is still a lot more than outer space (less than $10^ {-4}$ Pa according to wikipedia) The phase diagram of water shows that, at this pressure level, water can exist only as a solid or as vapor, depending on temperature, but not as a liquid
  • huggan on Socratic
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  • Water pressure calculation for a volume of water at a given height
    In reviewing the answer supplied by troy, The explanation of his increased water pressure on the larger pipe is as follows: The pressure from the tank is based on the height of the tank A tank on a 25' tower will supply at least 12 5 pounds per square inch (we don't know the height of the surface of the water ) The 3 4 inch pipe has an area of 44 sq in Thus the 3 4" pipe will have a
  • Maha A. on Socratic
    Maha A gets smarter on Socratic Maha A joined Socratic 7 210958904109589 years ago Maha A hasn't written a biography yet 3,229 students helped 1 Answer 1 Edit 5 Asked
  • Patrick R. on Socratic
    My name is Patrick Rambo I go to mill creek middle school in Nolensville, Tennessee
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