QQuestionPhysics
QuestionPhysics
The specific weight of water is 9810 N/m^3. A block of composite has a volume of 1.8 m^3 and has a mass of 1,539 kg. What is the specific gravity of the composite? Provide your answer with two decimals.
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Answer
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Step 1: Determine the volume of the block in meters cubed.
V = 1.8, mathrm{~m}^3
The problem states that the volume of the block is 1.8 m^3, so there's no need for further calculation here. We can represent this as:
Step 2: Calculate the mass of water with an equivalent volume to the block.
m = 1.8, mathrm{~m}^3 times 9810,frac{mathrm{N}}{mathrm{m}^3} = 17,658, mathrm{~N}cdotmathrm{m}^3
To find the mass of water with an equivalent volume, we can use the following formula: Where: - m is the mass of the water - V is the volume of the water (which is equal to the volume of the block) - g is the specific weight of water Substituting the given values and the volume from Step 1, we get:
Final Answer
The specific gravity of the composite is approximately 0.087.
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