The weight of a body completely immersed in some liquid is 20 N. The volume of this body, if the density
| July 25, 2021 | education
The weight of a body completely immersed in some liquid is 20 N. The volume of this body, if the density of this liquid differs from the density of the body by p = 200kg / m ^ 3, is?
To calculate the value of the volume of the presented body, we will use the formula: Pwater = Pair – Fa = ρt * V * g – ρw * g * V = (ρt – ρw) * V * g = Δρ * V * g, from where we express: V = Pwater / (Δρ * g).
Variables and constants: Pwat – weight of the specified body in water (Pwat = 20 N); Δρ is the difference in density (Δρ = 200 kg / m3); g – acceleration due to gravity (g ≈ 10 m / s2).
Calculation: V = Pwater / (Δρ * g) = 20 / (200 * 10) = 0.01 m3.
Answer: The volume of the body is 10 dm3.
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