Question

Брусок массой 91кг, имеет объём 130 дм^3. Определите из какого вещества состоит брусок. P.s. распишите пожалуйста и правильно оформить нужно дано там.) Заранее спасибо.

Answer 1

Ответ:

Берёза (сухая)

Объяснение:

m=91 кг    V=0.13 м³     p=?

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m=p*V ---> p=m*V=91/0.13=700 кг/м³

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Answer 2

Ответ: брусок состоит из дуба.

Answer 3

Given Information:

- Mass of the block: 91 kg - Volume of the block: 130 dm^3

To determine the substance the block is made of, we need to use the formula:

Density = Mass / Volume

Calculation:

First, we need to convert the volume from dm^3 to m^3, as the density formula requires the volume to be in cubic meters.

1 dm^3 = 0.001 m^3

So, the volume of the block in cubic meters is:

130 dm^3 * 0.001 m^3/dm^3 = 0.13 m^3

Now, we can calculate the density:

Density = Mass / Volume

Density = 91 kg / 0.13 m^3

Density ≈ 700 kg/m^3

Determining the Substance:

To determine the substance the block is made of, we can compare the calculated density (700 kg/m^3) with the densities of known substances.

Based on the calculated density, the block is most likely made of wood. Wood has a density range of approximately 300-900 kg/m^3, depending on the type of wood.

Please note that this is an estimation based on the calculated density and the density range of wood. Without additional information, it is not possible to determine the exact type of wood or any other substance the block could be made of.

I hope this helps! Let me know if you have any further questions.