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Concept

Problem: A submarine is stranded on the bottom of the ocean with its hatch 25 m below the surface. In this problem, assume the density of the sea water is 1.03 x 103 kg/m3. Calculate the force, in newtons, needed to open the hatch from the inside, given it is circular and 0.45m in diameter. The air pressure inside the submarine is 1.00 atm

FREE Expert Solution

Pressure in fluids:

$\overline{){\mathbf{P}}{\mathbf{=}}{\mathbf{h}}{\mathbf{\rho }}{\mathbf{g}}}$

Force and Pressure:

$\overline{){\mathbf{P}}{\mathbf{=}}\frac{\mathbf{F}}{\mathbf{A}}}$

ρseawater = 1.03 × 103 Kg/m3

h = 25 m

g = 9.8 m/s2

diameter, d = 0.45 m

A = πr2 = π(d/2)2 = π(0.45/2)2 = 0.159 m2

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Problem Details

A submarine is stranded on the bottom of the ocean with its hatch 25 m below the surface. In this problem, assume the density of the sea water is 1.03 x 103 kg/m3. Calculate the force, in newtons, needed to open the hatch from the inside, given it is circular and 0.45m in diameter. The air pressure inside the submarine is 1.00 atm

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Pressure concept. You can view video lessons to learn Intro to Pressure. Or if you need more Intro to Pressure practice, you can also practice Intro to Pressure practice problems.