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Block A: 65.14kg before: 100L after: 103.38L. Calculate the change in density.

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Final answer:

The change in density for Block A is found by calculating the initial and final densities using the block's mass and the initial and final volumes, and then subtracting the final density from the initial density. The calculated change in density for Block A is 0.0214 kg/L.

Step-by-step explanation:

To calculate the change in density for Block A, we need to know both the initial and final volumes as well as the mass of the block. The initial volume of Block A is 100L, and the final volume after some event is 103.38L. The mass of Block A remains constant at 65.14kg. Density is defined as mass per unit volume, so we can calculate the initial and final densities and then find the change in density.

The initial density of Block A is calculated as:
Densityinitial = mass / initial volume
Densityinitial = 65.14 kg / 100 L = 0.6514 kg/L

The final density of Block A is calculated as:
Densityfinal = mass / final volume
Densityfinal = 65.14 kg / 103.38 L = 0.6300 kg/L (rounded to four significant figures)

The change in density can therefore be calculated as:
Change in Density = Densityinitial - Densityfinal
Change in Density = 0.6514 kg/L - 0.6300 kg/L = 0.0214 kg/L

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