(a) (b) (c) A metal block is suspended in a tank of cold water as shown....

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(a) (b) (c) A metal block is suspended in a tank of cold water as shown. The cold water is then replaced by hot water that has a lower density. Force wire Block Water The tensile force in the wire when the cold water is replaced with hot water then will Explain your answer. [1 mark] A. Increases B. Decreases C. Stays the same D. The relation between the forces is indeterminate. A solid cylindrical buoy is 1.35 m in diameter and 1.8 m long and weighs 780 kg. Show that buoy does not float with its axis vertical if the specific weight of sea water is 10.25 kN/m³. [3 marks] You are given a task to make sure the buoy in part (b) will float with its axis vertical. In doing so, your top management provide you a material having specific gravity of 5.0. Draw a simple free body diagram of your design and details calculation to prove that the buoy can float with its axis vertical. Bear in mind that you cannot change the original dimension of the buoy given in part (b). [6 marks] (a) (b) (c) A metal block is suspended in a tank of cold water as shown. The cold water is then replaced by hot water that has a lower density. Force wire Block Water The tensile force in the wire when the cold water is replaced with hot water then will Explain your answer. [1 mark] A. Increases B. Decreases C. Stays the same D. The relation between the forces is indeterminate. A solid cylindrical buoy is 1.35 m in diameter and 1.8 m long and weighs 780 kg. Show that buoy does not float with its axis vertical if the specific weight of sea water is 10.25 kN/m³. [3 marks] You are given a task to make sure the buoy in part (b) will float with its axis vertical. In doing so, your top management provide you a material having specific gravity of 5.0. Draw a simple free body diagram of your design and details calculation to prove that the buoy can float with its axis vertical. Bear in mind that you cannot change the original dimension of the buoy given in part (b). [6 marks]