A cube has each edge equal to 2cm.Mass of cube is 20.8 g.what is its volume and density
Density = mass + volume
Volume = 2^3
Take it from here.
To find the volume of a cube, you need to know the length of any one edge. In this case, the length of each edge is 2cm.
To find the volume, you can use the formula:
Volume = (Edge length)^3
So, in this case:
Volume = (2cm)^3 = 2cm * 2cm * 2cm = 8cm^3
Therefore, the volume of the cube is 8 cm^3.
To find the density of the cube, you need to know its mass and its volume.
Density = Mass / Volume
In this case, the mass of the cube is 20.8g and its volume is 8cm^3.
Density = 20.8g / 8cm^3
To calculate the density, we just need to divide the mass by the volume.
Density = 20.8g / 8cm^3 = 2.6g/cm^3
Therefore, the density of the cube is 2.6 g/cm^3.