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svlad2 [7]
3 years ago
13

Science pls help me having trouble on the third one

Chemistry
2 answers:
Ira Lisetskai [31]3 years ago
6 0
The diameters of the spheres are 72.5 meters square
neonofarm [45]3 years ago
6 0

Answer:

ijcQwertyjkllmnnbbvcxzssssdttyyjnnnvvcxyj

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If a horse is moving and then come to a stop is the horse accelerating or decelerating
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The law of conservation of matter states that matter can be neither created nor destroyed. Your friend shows you the following c
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An atom (not a hydrogen atom) absorbs a photon whose associated wavelength is 300 nm and then immediately emits photon whose ass
KIM [24]

Answer:

The net energy is 2.196 eV

Explanation:

Basically, the energy of an atom increases when it absorbs a photon. In addition, the wavelength of the emitted photon is longer such that the atom absorbed a net energy in the process.

Using:

ΔE = h*c*(1/λ_{1} - 1/λ_{2})

where:

ΔE is the net energy in eV (electron-volt). 1 eV is equivalent to 1.602*10^{-19} J.

h = 4.135*10^{-15} eVs

c = 3*10^{8} m/s

λ_{1} = 300 nm = 300*10^{-9} m

λ_{2} = 640 nm = 640*10^{-9} m

Thus:

ΔE = 4.135*10^{-15} eVs*3*10^{8} m/s*(\frac{1}{300*10^{-9}m } }-\frac{1}{640*10^{-9}m })

ΔE = 4.135*10^{-15}*3*10^{8}*1.77*10^{6} eV = 2.196 eV

6 0
3 years ago
Pyruvate is the end product of glycolysis. Its further metabolism depends on the organism and on the presence or absence of oxyg
murzikaleks [220]

The given question is incomplete. The image present in the question for Reaction A is attached below along with the answer.

Explanation:

Pyruvate molecule reacts with Coenzyme A in the presence of oxygen and it results in the formation of acetyl Coenzyme A and carbon dioxide.

The enzyme pyruvae dehydrogenase helps in catalyzing this reaction. As in this biochemical reaction NAD^{+} gets converted into NADH.

This reaction is shown in the image attached below.  

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Which of these answers best describe a fossil ?​
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You would have to show me the answers
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