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docker41 [41]
3 years ago
5

What measurement is the quantity of mass per unit volume

Physics
2 answers:
ANTONII [103]3 years ago
6 0
That's the definition of the property called "density".
makkiz [27]3 years ago
4 0

The measurement is the quantity of mass per unit volume

Answer:

is the density

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Architects have to consider how sound travels when designing large buildings such as theaters, auditoriums, or museums. Sound in
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Answer:

  I₂ = 0.04 W / m²

Explanation:

Sound intensity is the power emitted between the unit area

          I = W / A

         W = I A

sound is a wave that travels in space whereby its energy is distributed on the surface of a sphere

         A = 4π r²

we substitute

         W = I (4π r²)

the emission power is constant, so the intensity at two different points is

           W = I₁ 4π r₁² = I₂ 4π r₂²

so the equation is

            I₁ r₁² = I₂ r₂²

In this case the units are not shown in the exercise, suppose that all units are in the SI system

           I₂ = I_1 \ \frac{r_1^2}{r_2^2}

let's calculate

           I₂ = 4 4 \  \frac{2^2}{20^2}

           I₂ = 0.04 W / m²

5 0
3 years ago
Difference between compound and element?
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Answer: Elements are pure substances which are composed of only one type of atom while compounds are substances which are formed by two or more different types of elements that are united chemically in fixed proportions.

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