Pressure and Depth At the surface of the ocean the waterpressure is the same as the air pressure above the water,15 lb/in2. Below the surface the water pressure increases by4.34 lb/in2for every 10 ft of descent.(a) Find an equation for the relationship between pressureand depth below the ocean surface.(b) Sketch a graph of this linear equation.(c) What do the slope and y-intercept of the graph represent?(d) At what depth is the pressure 100 lb/in2?

Question

Pressure and Depth At the surface of the ocean the water
pressure is the same as the air pressure above the water,
15 lb/in2
. Below the surface the water pressure increases by
4.34 lb/in2
for every 10 ft of descent.
(a) Find an equation for the relationship between pressure
and depth below the ocean surface.
(b) Sketch a graph of this linear equation.
(c) What do the slope and y-intercept of the graph represent?
(d) At what depth is the pressure 100 lb/in2
?

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