3. While scuba diving you discover a sunken Spanish Galleon. You find a bronze cannon (with mass M = 1500 kg in the shape of a cylinder L = 1.50 m long with a radius r= 5.00 cm) that has been sealed with a plug. You suspect the cannon is filled with gold and you want to bring it to the surface using a "lift bag". (A lift bag is an air-tight bag with straps which can be used to lift heavy underwater objects by means of the bag's buoyant force.) The cannon would hold a mass of m = 120 kg of gold (worth about $6.2 million). What volume V of air must be added to the lift bag to bring the cannon to the surface? Ignore the mass of the lift bag and the mass of the air in the lift bag. (The density of sea water p = 1025 kg/m³]
3. While scuba diving you discover a sunken Spanish Galleon. You find a bronze cannon (with mass M = 1500 kg in the shape of a cylinder L = 1.50 m long with a radius r= 5.00 cm) that has been sealed with a plug. You suspect the cannon is filled with gold and you want to bring it to the surface using a "lift bag". (A lift bag is an air-tight bag with straps which can be used to lift heavy underwater objects by means of the bag's buoyant force.) The cannon would hold a mass of m = 120 kg of gold (worth about $6.2 million). What volume V of air must be added to the lift bag to bring the cannon to the surface? Ignore the mass of the lift bag and the mass of the air in the lift bag. (The density of sea water p = 1025 kg/m³]
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