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mrs_skeptik [129]
2 years ago
12

2. Geographically, human development means advances in: *

Geography
1 answer:
Furkat [3]2 years ago
6 0
D. All three
Jknknskskwkksk
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Using Wien’s Law, estimate the wavelength at which these common materials radiate their peak brightness (show your work):
SSSSS [86.1K]

Explanation:

Wien’s Law:

\lambda _{max}\propto \frac{1}{temperature}

The law states that the wavelength at which black body emits maximum heat  is inversely proportional to the temperature of the body in Kelvins.

\lambda _{max}=\frac{2.9\times 10^{-3}}{T}

1) Walls at 300 K

\lambda _{max}=\frac{2.9\times 10^{-3} mK}{300 K}

\lambda _{max}=9.666\times 10^{-6} m

2) Ice water at 273 K :

\lambda _{max}=\frac{2.9\times 10^{-3} mK}{273 K}

\lambda _{max}=1.062\times 10^{-5} m

3) Hot water at 373 K :

\lambda _{max}=\frac{2.9\times 10^{-3} mK}{373 K}

\lambda _{max}=7.775\times 10^{-6} m

4)Skin at 310 K:

\lambda _{max}=\frac{2.9\times 10^{-3} mK}{310 K}

\lambda _{max}=9.355\times 10^{-6} m

5)An incandescent light bulb at 3000 K

\lambda _{max}=\frac{2.9\times 10^{-3} mK}{3000 K}

\lambda _{max}=9.666\times 10^{-7} m

3 0
3 years ago
Is niagara falls one of the seven wonders of the world.
geniusboy [140]

Answer:

No.

Explanation:

The seven wonders of the world are:

1) The Taj Mahal.

2) The Colosseum.

3) The Chichen Itza.

4) Machu Picchu.

5) Christ the redeemer (statue).

6) Petra.

7) Great Wall of China.

The Niagara Falls is a natural landscape.

4 0
2 years ago
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. Your clients are gathering research for a book they’re
Alexus [3.1K]
I think i would chose d, although the others aren't bad either :/  i would say d because of their involvement in the war
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The key difference is that the moon is farther away for the earth during an Annular eclipse.
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How does a remote control send information to a television
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Answer:

Through infrared radiation

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