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Choose the method that you want to use to obtain the volume of the sheath.

Displacement method
OR
Measurement method

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Briefly explain why you choose that method.

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Since density is a unique property of a material, we can use density to authenticate a material.

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Since density is a unique property of a material, we can use density to authenticate a material.

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If the density of the sheath is the same as the density of pure gold, the sheath is made of pure gold.

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Density is determined using the following steps:

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Density is determined using the following steps:

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1. Measure the mass of the object.
2 Measure the volume of the object.
3. Calculate density using Density = Mass/Volume

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1. Displacement method
2. Measurement method

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We are using the measurement method because it is easier to measure with a ruler and a micrometer which is more accurate instead of having to roll up the sheath and fit it inside the measuring cylinder.

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Because you need to measure lesser compared to measuring method which will cause lesser error.

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the method use is easier and faster

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Displacement method as it will be more accurate due to pure calculation

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We are using the measurement method because it is much more accurate in our opinion.

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As it is easier and less complicated than measurement method,

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2. 77 - grams
5cm - length
4.9cm - breadth
0.1033cm - thiccc
2.53085 - cm3
ANSWER = 1.104 - g/cm3