Question

but i U. Culparu the densities of three cubes.
10 kg of a metal is melted and recast into a cylinder of diameter 6 mm and 25 cm long.
Find the density of the cylinder. If this cylinder is again melted and recast into 7 equal
sized cubes find the density of each cube. What do you infer about their densities?

help​

Answer 1

Answer:

I Hope it helps you.

Explanation:

Volume of cylinder = πr  

2

h

                                = π×(3×10  

−3

)  

2

×25×10  

−2

m  

3

 

                                = 7.06×10  

−6

m  

3

 

Mass=10kg

Now density is given as:

density=  

volume

mass

​  

=  

7.06×10  

−6

 

10

​  

 

m  

3

 

kg

​  

 

density = 1414710.6kg/m  

3

 

& Since density is a characteristic property of a material hence density of each cube will be same.