(a)[3]
Fig. 1.1 (not to scale) shows a rectangular paddling pool measuring 20.0 m by 44.0 m. The volume of sea water in the pool is $264\,\text{m}^3$. Calculate the depth of the pool.
(b)[2]
The mass of the sea water in the pool is $2.70 \times 10^5\,\text{kg}$. Calculate the density of the sea water in the pool. Give your answer to 3 significant figures.
(c)[2]
Calculate the pressure due to the sea water at the bottom of the pool.
(d)[1]
State a suitable instrument for measuring the dimensions shown in Fig. 1.1.