Spherical cargo pod and crane payload

A spherical exhibition cargo pod has internal volume \(2400\text{ m}^3\). Its shell, frame and instruments have masses 85 kg, 70 kg and 35 kg. Two full coolant tanks together have mass 160 kg; each contains 45 L of coolant of density \(800\text{ kg/m}^3\). Use \(\pi=3.142\).

1. Find the pod radius to 3 d.p.
2. Find its surface area to 2 d.p.
3. Express the coolant volume in each tank in cubic metres.
4. Find each empty tank mass.
5. A crane can lift 900 kg and each display crate has mass 70 kg. Find the maximum number of crates lifted with the pod and full tanks.