the mass of an empty 40 liters petrol tank of a vehicle is 8 kg what is its mass when filled completly with a fuel of density 0.7 g/cc
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Answer: 36 kg
Explanation: fuel density = 700kg/m3
volume = 40l = 0.04 m3
mass of fuel = 700 × 0.04 = 28kg
mass when filled = 8 + 28 = 36kg
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