1 ) Find the pressure exerted below a column of water , open to the atmosphere at the depth , a ) 5 m , b ) 20 m ?

1 ) Find the pressure exerted below a column of water , open to the atmosphere at the depth ,

a ) 5 m  ,

b ) 20 m ,

( Given density of water  =  1 x 10 ^ 3 kg / m3  ,  g = 10 m / s2 )

Solution : -

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2 ) At a depth of 1000 m in an ocean ,

a ) : - What is absolute pressure ?

b ) : - What is gauge pressure ?

c ) : - Find the force acting on the wind of area 20 cm x 20 cm of a submarine at this depth , the interior of which is maintained at the sea – level atmospheric pressure . The density of sea water is  1.03 x 10 ^ 3  kg m ^ ( -3 )  and  g = 10 m / s2  and  Atmospheric pressure  =  1.01 x 10 ^ 5 Pa ?

Solution : -

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