HELP 20 POINTS
A photon has a wavelength of 366 nm. What is the frequency of this photon?
Answers
Answer:
9. 8.2x10¹⁴ Hz
Explanation:
Wavelength λ = 366 nm
Formula: Frequency = C / λ
To find the wavelength in m,
1 nm = 1.0x10⁻⁹ m
So, 366 nm = ?
= 3.66x10⁻⁷ m
Frequency = 3.0x10⁸m.s-1 / 3.66x10⁻⁷ m
= 8.2x10¹⁴ s-1
Related Questions
Yall-It's summer, so likely there's no one on here but like-I got bored and decided to play the password game-Rule 18 is: The elements in your password must have atomic numbers that add up to 200.The current elements I have are: Ne, V, W, ReI don't know what any of this is- I failed chem but please help ;-;Also ignore my username, I haven't used this account in like two years-
At 298 K, oxygen (O2) and ozone (O3) have different properties because their(1) atoms have different atomic numbers(2) atoms have different atomic masses(3) molecules have different molecular structures(4) molecules have different average kinetic energies
In what parts of your daily life might you need to calculate the percentage composition of something?
18. Which of the following reactions are endothermic or exothermic? Explain your answers. A. When a certain amount of potassium nitrate is dissolved in water, the water temperature drops from 23°C to 18°C. B. Jack cooks himself a steak. C. When cold water is mixed with sulphuric acid, the mixture can rapidly reach the boiling point of water. D. A flare burns up slowly.
Answers
B: Neon
C: Fluorine
D: Potassium
Answers
Answer: The element is Fluorine.
Explanation:
Atomic number is defined as the number of protons or electrons that are present in a neutral atom.
Atomic number = number of protons = number of electrons
Atomic mass is defined as the sum of number of protons and neutrons that are present in an atom.
Atomic mass = Number of protons + Number of neutrons
We are given:
Number of protons = 9 = Atomic number
Number of electrons = 9
Number of neutrons = 10
Mass number = 9 + 10 = 19
The element having atomic number equal to 9 and mass number equal to 19 is fluorine.
Hence, the element is Fluorine.
I hope this helps.
b) a period of time when temperatures across the planet are colder than normal
c) a characteristic of summer that returns seasonally
d) the gain of heat in coastal areas from El Niño storms
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Global Warming is a gradual increase in the overall temperature of the earth's atmosphere.
So, i believe the answer to your question would be a) a recent increase in the average global temperatures near Earth's surface
a
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a gas that ignites a glowing splint is oxygen
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The statement is true , oxygen is a gas which ignites a glowing splint.
How does oxygen ignite a glowing splint?
A splint is a simple piece which is used in scientific laboratories. They are typically long, thin strips of wood of about 6 inches long and 1/4 inches wide. They are consumable and inexpensive. They are used for lighting burners , chemical identification of various gases .
For gases which are hard to distinguish , a glowing splint test is used for identification of gases. . These tests are useful for identifying whether the gas is oxidizing,flammable or chemically inert.Oxygen is one of the gases which can be identified using the splinter test as it is combustible.
For the test, the splint is lit and is allowed to burn for a fraction of seconds and then blown out as the tip is still hot it is introduced into the jar containing the oxygen gas and thus re-igniting the splinter.
Learn more about splint,here:
#SPJ2
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Liquids do not expand but will fill a container because they have no set shape just a set volume
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Answer:
Correct answer: B). Global climate is changing due to burning of fossil fuels and deforestation.
Forest holds a large amount of carbon, plants are known to absorb carbon dioxide from the atmosphere as they grow, that carbon dioxide is stored in plants in the form of carbon in plant's roots, leaves and in the soil. When trees are cut down, that stored carbon is released in the environment in the form of carbon dioxide, which accounts for approximately 18% of global greenhouse gas emission.
The burning of fossil fuel like coal, petroleum, oil, gas for the energy purpose is one of the major contributors for the rising level of carbon dioxide in the atmosphere, which leads to global warming and affect the climate.
Hence, the correct answer would be option B.
Explanation: