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A cylindrical, wooden table top has a density of 0.44 g cm³ and a mass of 0.15 kg The table top has a depth of 5 cm. Find the radius of the table top, rounded to 1 dp. ​

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Answer:

Explanation:

We can start by using the formula for the volume of a cylinder:

Volume = πr²h

where r is the radius and h is the height (or depth) of the cylinder.

Since the table top is cylindrical, we can also use the formula for the density of an object:

Density = mass / volume

We can rearrange this formula to solve for the volume:

Volume = mass / density

Substituting the given values, we get:

Volume = 0.15 kg / 0.44 g cm³

We need to convert the density from grams per cubic centimeter to kilograms per cubic meter, so we multiply by 1000:

Volume = 0.15 kg / (0.44 g cm³ x 1000) = 0.000340909 m³

Now we can use the given depth of the table top to find the radius:

Volume = πr²h

0.000340909 m³ = πr² x 0.05 m

Dividing both sides by π x 0.05 m, we get:

r² = 0.000340909 m³ / (π x 0.05 m)

r² = 0.004329 m²

r ≈ 0.066 m (rounded to 3 decimal places)

Therefore, the radius of the table top is approximately 0.066 m, rounded to 1 decimal place.

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