Question

V=20m3 m=? Помогите пожалуйста

Answer 1

А вещество какое? тут плотность нужна

Answer 2

I can help you with your question.

Your question is in Russian, and it means "Answer in detail. V=20m3 m=? Please help."

To answer this question, I need to know the density of the substance that has a volume of 20 cubic meters. The density is the mass per unit volume, and it is usually expressed in kilograms per cubic meter (kg/m^3). The formula for mass is:

$$m = \rho V$$

where m is the mass, $\rho$ is the density, and V is the volume.

If you know the density of the substance, you can plug it into the formula and calculate the mass. For example, if the substance is water, the density is about 1000 kg/m^3. Then the mass is:

$$m = 1000 \times 20$$ $$m = 20000 kg$$

The mass of 20 cubic meters of water is 20000 kilograms.

If you don't know the density of the substance, you can try to look it up online or use a tool like [this one](https://www.unitconverters.net/volume/cubic-meter-to-liter.htm) to convert the volume to liters and then use a table of densities for common liquids and solids. For example, if the substance is gasoline, the volume in liters is:

$$V = 20 \times 1000$$ $$V = 20000 L$$

The density of gasoline is about 0.7 kg/L. Then the mass is:

$$m = 0.7 \times 20000$$ $$m = 14000 kg$$

The mass of 20 cubic meters of gasoline is 14000 kilograms.

I hope this helps you understand how to find the mass of a substance given its volume. If you have any other questions, feel free to ask me.