Aspherical submersible 1.87 m in radius, armed with multiple cameras, descends under water in a region of the atlantic ocean known for shipwrecks and finds its first shipwreck at a depth of 1.84 ✕ 103 m. seawater has density 1.025 ✕ 103 kg/m3, and the air pressure at the ocean's surface is 1.013 ✕ 105 pa.
(a) what is the absolute pressure at the depth of the shipwreck?
pa

(b) what is the buoyant force on the submersible at the depth of the shipwreck? (give the magnitude.)

The concepts that we need to apply in this problem are the Pressure in a liquid at a given depth, that is hydrostatic pressure and the force in terms of density, volume and gravity.

The hydrostatic pressure is given by,

Where

is the pressure at the top

is the density

g = gravity force

D = The distance from the top.

Part A )

Part B) The force in terms of density, volume and gravity is

wvbbvvv

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2