Awater-filled manometer is used to measure the pressure in an air-filled tank. one leg of the manometer is open to atmosphere. for a measured manometer deflection of 250 cm water, determine the absolute pressure and the gauge pressure of the tank. barometric pressure is 101.3 kpa abs.

P(abs) =103.8 KPa

P(gauge) =2.5 KPa

Explanation:

Given that

Manometer deflection(h) =250 cm water

Barometric pressure = 101.3 kPa abs

As we know that Barometric measure atmospheric pressure while manometer reads gauge pressure or local pressure.

We also know that density(ρ) of water is 1000 kg/m³.

Gauge pressure P(gauge) = ρ g h

P(gauge) = 1000 x 10 x 0.25 = 2.5 KPa                ( take g =10 m/s²)

P(gauge) =2.5 KPa

P(atm) = 101.3 KPa

Absolute pressure = atmospheric pressure + gauge pressure

P(abs) = P(atm) + P(gauge)

P(abs) = 101.3 + 2.5  KPa

P(abs) =103.8 KPa

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )