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Math Asked by a SnapAndSolve user · about 2 hours ago

What is the density of the cube if the mass is 24g?

16. What is the density of the cube if the mass is 24g?
18. A metal ruler has a mass of 42g and a volume of 10cm³. What is the density?
20. Use the image below to find the density of a rock that has a mass of 60g.

Answer

  1. Density is calculated using the formula: Density = Mass / Volume. For the cube, the volume is calculated as Volume = W × L × H = 2cm × 2cm × 2cm = 8cm³. Therefore, the density is 24g / 8cm³ = 3g/cm³.

  2. The density of the metal ruler is calculated as Density = Mass / Volume = 42g / 10cm³ = 4.2g/cm³.

  3. To find the density of the rock, first determine the volume displaced by the rock using the image. If the initial water level is 75mL and the final water level is 150mL, the volume of the rock is 150mL - 75mL = 75mL. The density is then Density = Mass / Volume = 60g / 75mL = 0.8g/mL.

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