A solid metal object is formed by firmly joining a right circular cylinder to a hemisphere of the same radius. The radius of both the cylinder and the hemisphere is 2cm. The height of the cylindrical part is 5cm. The combined mass of the object is 1020g.
(i) Calculate the total volume of the object in cm3.
(ii) Determine the density of the metal in gcm−3.
(iii) Convert this density into kgm−3.