Question

PLEASE HELL ME!!!!

Answer 1

Answer:

The answer is 0.045 kg/cm³

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume}$

From the question

mass of cylinder = 14 kg

Volume of a cylinder = πr²h

where

r is the radius

h is the height

$radius = \frac{diameter}{2}$

From the question

h = 25 cm

$r = \frac{4}{2} = 2 \: \: \: cm$

The volume of the cylinder is

$V = {2}^{2} (25)\pi \\ = 4 \times 25\pi \\ = 100\pi \\ = 314.159265...$

We have

volume = 314.159 cm³

The density of the cylinder is

$density = \frac{14}{314.159} \\ = 0.044563421...$

We have the final answer as

0.045 kg/cm³

Hope this helps you

Answer 2

Answer:

The answer is 0.045 kg/cm³

Explanation:

The density of a substance can be found by using the formula

From the question

mass of cylinder = 14 kg

Volume of a cylinder = πr²h

where

r is the radius

h is the height

From the question

h = 25 cm

The volume of the cylinder is

We have

volume = 314.159 cm³

The density of the cylinder is

We have the final answer as

0.045 kg/cm³