Question

The local atmospheric pressure is measured with a water barometer. If the water column is measured to be 30 ft, what is the atmospheric pressure in atm?

Answer 1

The atmospheric pressure in atm=0.885 atm

Step-by-step explanation:

Given that

Local pressure (h)= 30 ft of water height ( 1 ft= 0.3048 m)

We know that pressure in given by

P=ρgh

We know that ρ of water is 1000
`(kg)/(m^3)`

So pressure

P=1000(9.81)(9.144)

`P=89.7026 (N)/(m^2)`

We know that 1000 Pa=0.00986 atm

So P=0.885 atm

The atmospheric pressure in atm=0.885 atm