P=(1.01 x 10^5) + (1000)g(6)
Good point. The water tank is 20 m high and the gauge is 6 m above the base so how many meters below the water line is it?xiankai said:u're finding the pressure exerted by 6m of water?
Gauge pressure is a measurement of pressure relative to atmospheric pressure. It is the difference between the absolute pressure and the atmospheric pressure. Gauge pressure is typically measured in units of pounds per square inch (psi) or kilopascals (kPa).
Absolute pressure is the total pressure exerted on a system, including atmospheric pressure. Gauge pressure only measures the pressure above atmospheric pressure. This means that a gauge pressure reading of 0 psi or 0 kPa indicates that the pressure is equal to atmospheric pressure.
Gauge pressure can be measured using a pressure gauge or manometer. A pressure gauge typically consists of a dial and a needle that moves to indicate the pressure. A manometer is a U-shaped tube filled with liquid, and the difference in levels of the liquid indicates the pressure.
Some common units for gauge pressure include pounds per square inch (psi), kilopascals (kPa), atmospheres (atm), and bars (bar). The choice of unit often depends on the specific application and industry.
Gauge pressure is used in many scientific fields, including engineering, physics, and chemistry. It is a crucial measurement in fluid dynamics, as it helps determine the flow rate and pressure drop in a system. Gauge pressure is also important in studying gas laws and atmospheric pressure changes.