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Sedaia [141]
3 years ago
5

The concentration of carbon monoxide in an urban apartment is 48μg/m3. What mass of carbon monoxide in grams is present in a roo

m measuring 10.6ft×14.8ft×20.5ft?
Physics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer;

= 5.45 × 10-3 g or 5.45 mg

Explanation;

1 meter = 3.048 feet

Volume = 10.6 × 14.8 × 20.5 ft³  × (1/3.048 ft/m³)

             = 113.57 m³

Therefore; the mass of carbon monoxide;

                = 113.57 m³ × 48 × 10^-6 g/m³

                = 5.45 × 10^-3 g

                = 5.45 mg


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The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius ????h=0.209 m and mass 4.32 kg , an
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r= 98.3 mm

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The Total moment of inertia of the  wagon

I=MR²+2 x 1/12 m L²

Now by putting the values

I=4.32\times 0.209^2+2\times \dfrac{1}{12}\times 7.73\times 0.418^2\ kg.m^2

I=0.413 kg.m²

For disk:

t= 0.0462 m

Density ρ = 5990 kg/m³

Lets take r is the radius of disk

So the mass of the disc

m'=ρ πr² t

The moment of inertia of disc

I'=1/2 m'r²

I'=1/2 x r² x ρ πr² t

Given that

I = I'

1/2 x r² x ρ πr² t = 0.413 kg.m²

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8 0
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