What is the density of a 3 kg solid cylinder that is 7 cm tall with a radius of 2 cm?
density = mass/volume = 3kg / (28π cm^3) = ____ kg/cm^3
is it 9.33?
nvm I got 29.30
how did you get either of those answers?
well, I did 28x3.14 divided by 3 and that's how I got 29.30 am I wrong?
upside down?
upside down what?
28x3.14 divided by 3 NO
3 divided by (28 pi) YES
is it 0.336
To find the density of the solid cylinder, we can use the formula:
Density = Mass / Volume
We are given that the mass of the solid cylinder is 3 kg.
To find the volume of the cylinder, we can use the formula for the volume of a cylinder:
Volume = π * r^2 * h
where:
π = 3.14159 (approximation of pi)
r = radius of the cylinder
h = height of the cylinder
In this case, the radius (r) is given as 2 cm and the height (h) is given as 7 cm.
Plugging in the values, we can calculate the volume:
Volume = π * (2 cm)^2 * 7 cm
= 3.14159 * 4 cm^2 * 7 cm
= 87.9646 cm^3 (approximated to five decimal places)
Now, we can use the formula for density to calculate the density:
Density = Mass / Volume
= 3 kg / 87.9646 cm^3
≈ 0.034 kg/cm^3
Therefore, the density of the 3 kg solid cylinder is approximately 0.034 kg/cm^3.