Question

Please help i will give you 50 points

what is the density of a book whose mass is 1,800 g and whose volume is 300 cm2

what is the mass of a ball whose density is 0.250 g/cm3 and whose is 200 cm3

Answer 1

Answer: For your first question about the book, the answer is 6 g/cm^3. For the ball, your mass is 50 grams.

Explanation: density = mass/volume; for example: your book was 1,800 g. Divide that by 300 cm^3 to get 6g/cm^3. For the ball, mass = density*volume, so you need to multiply .250 by 200 cm^3

Answer 2

Answer : The density of book is
`6g/cm^3`

The mass of a ball is, 50 grams.

Explanation :

Part 1 :

Density : It is defined as the mass contained per unit volume.

Formula used :

`Density=(Mass)/(Volume)`

Given :

Mass = 1800 g

Volume =
`300cm^3`

Now put all the given values in the above formula, we get :

`Density=(1800g)/(300cm^3)=6g/cm^3`

Therefore, the density of book is
`6g/cm^3`

Part 2 :

Formula used :

`Density=(Mass)/(Volume)`

Given :

Volume =
`200cm^3`

Density =
`0.250g/cm^3`

Now put all the given values in the above formula, we get :

`0.250g/cm^3=(Mass)/(200cm^3)`

`Mass=0.250g/cm^3* 200cm^3=50g`

Therefore, the mass of a ball is 50 grams.