a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.
To find the density of the metal, we can use the formula:
Density = Mass / Volume
First, we need to convert the mass from kilograms to grams:
2.7 kg = 2700 grams
Now, let's calculate the volume of the block:
Volume = Length × Breadth × Height
Volume = 20 cm × 10 cm × 5 cm
Volume = 1000 cm³
Now, we can substitute the values into the formula:
Density = 2700 grams / 1000 cm³
Density = 2.7 g/cm³
The density of the metal is 2.7 g/cm³.
To determine what the block is made of, we can compare the density value to the densities of known substances.
To find the density of the metal, we need to use the formula:
Density = Mass / Volume
First, let's convert the mass from kilograms (kg) to grams (g). Since 1 kg is equal to 1000 g, the mass of the metal is 2.7 kg * 1000 g/kg = 2700 g.
Next, we need to determine the volume of the block. The volume of a rectangular block can be calculated by multiplying its length, breadth, and height. In this case, the volume is 20 cm * 10 cm * 5 cm = 1000 cm^3.
Now we can calculate the density using the formula:
Density = 2700 g / 1000 cm^3 = 2.7 g/cm^3
Therefore, the density of the metal is 2.7 g/cm^3.
To determine what the block is made of, you would need additional information such as the characteristics of various metals or conducting further tests on the block, such as measuring its melting point or conducting chemical tests.
"shakhenbi" is not a subject, at least not in English.
First compute the density: mass/volume
It will be about 2.7 g/cm^3
There are many materials with that density.
Among metals, one of the most abundant with that density is aluminum.