A rectangular metal block has mass 0.240kg. Its length, breadth and height measured with a metre scale are 8.0cm, 5.0cm and 2.0cm respectively.
(i) Calculate the volume of the block in m3.
(ii) Determine its density in kgm−3.
(iii) The density of water is 1000kgm−3. State, with reason, whether the block will float or sink when gently placed in water.