a rectangular block measures 2cm * 1.5cm *1cm .the mass of the object is 31.5 grams .what is its density ?
density= mass/volume= mass/(2cm*1.5cm*1cm)
get your pencil busy.
if the block has a length of 5 cm the width is 4cm and the height is 2cm (but the mass is 80 g ) what is the density
To find the density of the rectangular block, you need to know its mass and its volume. Density is defined as the mass of an object divided by its volume.
Given:
Mass = 31.5 grams
To find the volume of the rectangular block, you can multiply the lengths of all three dimensions together.
Length = 2 cm
Width = 1.5 cm
Height = 1 cm
Volume = Length * Width * Height
Substituting the given values:
Volume = 2 cm * 1.5 cm * 1 cm
Now, multiply the resulting volume by the density to find the mass:
Density = Mass / Volume
Substituting the given values:
Density = 31.5 g / (2 cm * 1.5 cm * 1 cm)
Now, simply evaluate the expression to find the density:
Density = 31.5 g / 3 cm^3
Divide the mass by the volume:
Density ≈ 10.5 g/cm^3
Therefore, the density of the rectangular block is approximately 10.5 grams per cubic centimeter (g/cm^3).