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Sliva [168]
3 years ago
5

A spring hangs from the ceiling with an unstretched length of x0=0.45 m . A m1=7.9 kg block is hung from the spring, causing the

spring to stretch to a length x1=0.74 m.Find the length x2of the spring when a m2=3.3 kg block is hung from the spring. For both cases, all vibrations of the spring are allowed to settle down before any measurements are made.

Physics
1 answer:
andrezito [222]3 years ago
6 0

Answer:0.126 meters

Explanation:see attached photo

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murzikaleks [220]
The question is looking for "ellipse" and "two" to fill in the blanks.
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(a) A 70-kg person at rest has an oxygen consumption rate Qhum = 14.5 liter/h, 2% of which is supplied by diffusion through the
nevsk [136]

Answer:

(a) fd=1.7058\times 10^{-5}\ L.hr^{-1}.cm(b) [tex]r=26.008\ cm

Explanation:

(a)

  • Oxygen consumption rate of humans, Q_h=14.5\ L.hr^{-1}

area of human skin, A_h=1.7\ m^2

  • diffusion rate through skin of humans, d=2\%\ of\ Q_h
  • ∴d=\frac{2}{100} \times 14.5

d=0.29\ L.hr^{-1}

<u>Flux of diffusion rate, </u>

fd=\frac{d}{A}

fd=\frac{0.29}{17000}

fd=1.7058\times 10^{-5}\ L.hr^{-1}.cm(b)Surface area for a spherical animal:[tex]A=4.\pi.r^2

Diffusion flux rate for animal:

fd=\frac{14.5}{A}

1.7058\times 10^{-5}=\frac{14.5}{4.\pi.r^2}

r=26.008\ cm

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4 years ago
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Igoryamba

Answer:

A. 1.

B. 5.

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Explanation:

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Y_Kistochka [10]

Answer:

Explained below.

Explanation:

For a boat or any object to float on water, it's density must be less than that of water.

Now, when the maximum capacity of people to be carried by the boat is exceeded, it's possible that the maximum mass of people will also be exceeded depending on the mass of the people in the boat.

Now, we know that; density = mass/volume.

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olga nikolaevna [1]

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