The coordinates of point B are

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

What is responsible for deep ocean circulation?

podryga [215]

Currents are responsible for deep ocean circulation

7 0

3 years ago

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Which event did not occur during the Cold War period? Soviet control of Communist governments in Eastern Europe the arrest of mi

Dvinal [7]

Armed conflict between the United States and the Soviet Union that led to the breakup of the Soviet Union.

5 0

3 years ago

What is an epoch? Explain what it means

DENIUS [597]

ep·och - noun

a period of time in history or a person's life, typically one marked by notable events or particular characteristics.

"the Victorian epoch"

4 0

3 years ago

1. Which occurrence is not characteristic of global warming? (1 point)

USPshnik [31]

1. An occurrence that is not a characteristic of global warming is;

B. Stabilization in the sea level due to warm weather

A warming climate can cause seawater to expand and ice over land to melt, both of which can cause a rise in sea level.

2. A non-impact of global warming on ecosystem is;

D. Food and supplies increase

Climate change not only affects ecosystems and species directly

3. A factor that contributes to the strength of hurricanes is;

A. Warmer ocean temperatures

Hurricanes start simply with the evaporation of warm seawater, which pumps water into the lower atmosphere. Once hurricanes move over cold water or over land and lose touch with the hot water that powers them, these storms weaken and break apart.

4. A practice that does not protect the environment is;

D. Frequent usage of a SUV

Car pollution is one of the many major causes of global warming. Cars and trucks emit carbon dioxide and other greenhouse gases, which contribute one-fifth of the United States' total global warming pollution.

5. A vehicle that is most likely to be fuel efficient is the;

D. Gas-electric hybrid car

Hybrids are the most gasoline efficient of all cars

6. Scientists predict that global warming will cause Ethiopia to experience;

D. Greater frequency of drought-related conditions

The environment is directly impacted by drought. Drought can affect water sources, land, fish and wildlife and plant communities. A lack of water and reduced ability for soil to support crops can affect fish, animals and plant life.

7. A majority of the greenhouse-gas emissions released into the;

C. Carbon dioxide

Carbon dioxide (CO2) makes up the vast majority of greenhouse gas emissions from the sector.

8. The main human activity that contributes to global warming is;

E. Burning of fossil fuels

The burning of fossil fuels by humans is the largest source of emissions of carbon dioxide, which is one of the greenhouse gases that allows radioactive forcing and contributes to global warming.

9. A statement that is true regarding where pollution is most evident is;

A. Areas with a high population density

As people age, their bodies are less able to compensate for the effects of environmental hazards.

10. A human activity that would best support global efforts to improve the environment and to reduce global warming is;

B. Riding a bicycle to a nearby playground

Riding a bike provides a fairly fast and dependable mode of transportation that just happens to save money, getting fit and helping to reduce global warming.

5 0

2 years ago

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￼ The coordinates of point B are​

The coordinates of point B are