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igomit [66]
4 years ago
14

Use Wien’s Law to calculate the peak wavelength of Betelgeuse, based on the temperature found in Question #8. Note: 1 nanometer

(nm) = .0000001 centimeters (cm) 208nm 400nm 828nm 1800nm
Physics
1 answer:
kodGreya [7K]4 years ago
8 0

The peak wavelength of Betelgeuse is 828 nm

Explanation:

The relationship between surface temperature and peak wavelength of a star is given by Wien's displacement law:

\lambda=\frac{b}{T}

where

\lambda is the peak wavelength

T is the surface temperature

b=2.898\cdot 10^{-3} m\cdot K is Wien's constant

For Betelgeuse, the surface temperature is approximately

T = 3500 K

Therefore, its peak wavelength is:

\lambda=\frac{2.898\cdot 10^{-3}}{3500}=8.28\cdot 10^{-7} m = 828 nm

Learn more about wavelength:

brainly.com/question/5354733

brainly.com/question/9077368

#LearnwithBrainly

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A 9-inch tall sunflower is planted in a garden and the height of the sunflower increases exponentially. 5 days after being plant
stira [4]

Answer:

a)  h / h₀ = 1,682

, b) h / h₀ = 1.11

, c)    h / h₀ = 2.07

Explanation:

For this exercise let's look for the growth equation, as they indicate that it is exponential

        h = h₀ e^{\alpha t}

The initial height is 9 ”, so the constant

         h₀ = 9”

Let's use the given values

       h = 15.1655”

       t = 5 days

       h / h₀ = e^{\alpha t}

      α = 1 / t ln h / h₀

       α = 1/5 ln (15.1655 / 9)

      α = 0.104

       h = 9 e^{0.104 t}

a) the growth factor is the relationship between the initial value and the current value

        h / h₀ = e^{0.104  5}

        h / h₀ = 1,682

b) for t = 1 day

       h / h₀ = e^{0.104 1}

       h / h₀ = 1.11

c) for t = 7 days

       h / h₀ = e^{0.104 7}

       h / h₀ = 2.07

8 0
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A girl attempts to drink a large glass of water without stopping. when she finishes, she gasps for air as she was unable to brea
katrin [286]

The behaviour that has just been displayed by the girl is an example of a learned behavior.

<h3>What is learned behaviour?</h3>

The term learned behaviour has to do with those behaviour that the individual acquires by practise and are not innate in the organism. The ability to drink a large amount of water without breathing is not inate in man.

Hence, the behaviour that has just been displayed by the girl is an example of a learned behavior.

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2 years ago
Why do atoms have an overall neutral charge?
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Atoms have an overall charge that is neutral because atoms have equal number of positive protons and negative electrons thus they cancel each other out. This always true for atoms that are stable and in equilibrium.
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Veseljchak [2.6K]
Motion is the process of changing position.
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A technician places a fluid substance, with a refractive index of 1.61, between two horizontal panes of flat glass (each of whic
Ahat [919]

Answer:

the minimum thickness (in nm)  t = 102.5 nm

Explanation:

t = thickness of the film

n = index of refraction = 1.61

m = order = 1

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so we have the formula

2nt = m∝

2 (1.61) t = (1) (330 x 10-9)

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converting...

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