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Pressure

A giant squid...

Question

A giant squid of length 20.0m is vertical in seawater, with the top of the squid at a depth of $8.00 m$ . The density of seawater is $1050 k g m^{- 3}$ .
What is the difference in pressure between the top and the bottom of the squid?

82000 P a

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206000 P a

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288000 P a

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389000 P a

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Solution

The correct option is B $206000 P a$
Difference in pressure $P = ρ g (h_{2} - h_{1})$
$⟹ P = 1050 \times 10 \times (28 - 20)$
$⟹ P = 206000 P a$

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___ Pa is the pressure at a depth of 50 m below the surface of the sea. The density of seawater is 1024 kg/m³.

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