Fig. 3.1 depicts a small submarine lying beneath the sea surface. The submarine is $3.0 \times 10^3\,\text{m}$ below the surface.
(a)[2]
Calculate the pressure produced by the sea water on the submarine’s top when it is $3.0 \times 10^3\,\text{m}$ below the surface.
(b(i))[3]
Calculate the distance between the submarine and the other object.
(b(ii))[1]
Compare the distance of the second object from the submarine with the distance calculated in (b)(i). Tick one box. Then give a reason for your choice.
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