Question

Please help i will give you 50 points

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 :

$Density=\frac{Mass}{Volume}$

Given :

Mass = 1800 g

Volume = $300cm^3$

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

$Density=\frac{1800g}{300cm^3}=6g/cm^3$

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

Part 2 :

Formula used :

$Density=\frac{Mass}{Volume}$

Given :

Volume = $200cm^3$

Density = $0.250g/cm^3$

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

$0.250g/cm^3=\frac{Mass}{200cm^3}$

$Mass=0.250g/cm^3\times 200cm^3=50g$

Therefore, the mass of a ball is 50 grams.