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when should we use P=h row g and when P=Pa+h row g ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

when should we use P=h row g and when P=Pa+h row g ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Grade:11

2 Answers

Joewin
21 Points
3 years ago
P=hrwog is used when we find find pressure over a surface kept in atmosphere (above sea level )  and p =hrwog +PA is used for calculating pressure over an area or object immesersed in a sea 
Joewin
21 Points
3 years ago
Kindly refer to the following link https:/ww.physicsforums.com/threads/pressure-under-water.307277/ it is used for calculating pressure when a body is immersed in a sea (below the sea level

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