The frequency and energy of most energetic of these photons is
Hz and 
J respectively.
The high energy photons will have least wavelength. Taking the given less wavelength for calculation of frequency and energy of photons.
λ = 2200 Å
Also, we know, 1 Å = 
m
So, λ = 
λ = 
<em> </em>m
Now, calculating frequency using the formula -
c = fλ, where c is speed of light, f is frequency and λ is wavelength.
We know, c = 
m/s
f = c/λ
f = 
frequency = Hz
Now, calculating Energy through the formula -
E = hf, where E is energy, h is planck's constant and f is frequency
Value of planck's constant = 
Js
E = *
Energy = J
Thus, frequency and energy of photons is Hz and J respectively.
Learn more about energy of photon -
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Answer:
2.1 M
Explanation:
The dilution equation is 
.
= the molarity of the sock solution
= the volume of the sock solution
= the molarity of the diluted solution
= the volume of the diluted solution
The stock solution would be what is doing the diluting, so "175 mL of a 3.00 M solution". So = 3.00 M. Then: Converting 175 mL to liters: 
(This is )
And converting 250 mL KCl to liters: 
(This will be )
Then, we plug in our given into the dilution equation, resulting in:
(divide both sides by 0.250 L, in order to get by itself)
So, the molarity of 250 mL KCl made by diluting 175 mL of a 3.0 M solution would be 2.1 M (mol/L).
Hopefully this helped you understand the topic a little bit better. I just finished molarity and dilutions in Chemistry last week. Good luck!
Answer:
The answer is "Upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers".
Explanation:
The limited farmland nutrition web, that reveals better which Upland sandpipers were main and secondary customers in this farmland since they eat grass with grasshoppers.
- It also eat butterflies, bricks, shrimps, mollusks, worms, and nematodes, throughout contrast to bugs, which sandpipe gathers seed of hay, plants, conifers, and rice, rye, or strawberries.
- Highlands dragonflies sometimes assemble in recently burnt fields with such a wealth of squirrels.
The answer would be G, a vacuum.
Explanation: Sound waves can't travel through a vacuum because a vacuum lacks air. Without air, no vibrations can occur and vibrations is a fundamental part for how sound is possible. Without it, sound waves can't travel.
