Question

Как узнать густоту плавающего тела

Answer 1

Возможно, разделить вес на объём,но это плотность
либо по этим формулам,смотря что Вам неизвестно :
F1 = mg 
m= F/g
F2= mg - pgV
находим теперь объём
V= (F1-F2)/pg
и плотность
p=m/V=(F1/g)/((F1-F2)/pg)
p=pF1/(F1-F2)

Answer 2

How to Determine the Density of a Floating Object

To determine the density of a floating object, you can use the following steps:

1. Measure the Mass and Volume: First, measure the mass and volume of the floating object. The mass (m) can be measured using a scale, and the volume (V) can be measured using a graduated cylinder or by submerging the object in water and measuring the displaced volume.

2. Calculate the Density: Once you have the mass and volume, you can calculate the density (ρ) using the formula: ρ = m/V. This formula represents the ratio of the mass of the object to its volume.

3. Compare with the Density of the Surrounding Fluid: Compare the calculated density of the floating object with the density of the surrounding fluid. If the density of the object is less than the density of the fluid, it will float. If the density of the object is greater than the density of the fluid, it will sink.

4. Considerations: It's important to note that the density of the surrounding fluid can affect whether an object floats or sinks. For example, objects with a density less than that of water will float in water, but may sink in a denser fluid like saltwater.

By following these steps, you can determine the density of a floating object and understand its behavior in different fluids.