Question

calculate the water pressure on scuba driver as he desends into fresh lake
a.10m
b.20m
c.30m​

Answer 1

Let atmospheric pressure =Po=1.05×10⁵ Pa

P=Po+ρgh

• Pressure 10m below surface of lake,

=1.05×10⁵ +1000×9.8×10= ***calculate***. Pa

• Pressure 20m below surface of lake,

=1.05×10⁵ +1000×9.8×20= ***calculate*** Pa

• Pressure 30m below surface of lake,

=1.05×10⁵ +1000×9.8×30= ***calculate*** Pa

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