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lana66690 [7]
3 years ago
11

Which math formula will find density?

Physics
2 answers:
Sedbober [7]3 years ago
8 0
Mass/volume is the formulae
Kipish [7]3 years ago
7 0

the 3 is the right answer.

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The amount of energy necessary to remove an electron from an atom is a quantity called the ionization energy, Ei. This energy ca
larisa86 [58]

Answer:

The value is E_i  =  1.5596 *10^{-18} \  J

Explanation:

From the question we are told that

The wavelength is \lambda  =  48.2 nm  =  48.2  *10^{- 9 }\  m

The velocity is v = 2.371*10^6 \ m/s

The mass of electron is m_e  =  9.109*10^{-31} \  kg

Generally the energy of the incident light is mathematically represented as

E =  \frac{h *  c}{\lambda}

Here c is the speed of light with value c =  3.0 *10^{8} \  m/s

h is the Planck constant with value h = 6.62607015 *  10^{-34 }  J\cdot s

So

E =  \frac{6.62607015 *  10^{-34 }* 3.0 *10^{8}}{48.2  *10^{- 9 }}

=> E = 4.12 *10^{-18} \  J

Generally the kinetic energy is mathematically represented as

E_k  =  \frac{1}{2} *  m_e * v^2

=> E_k  =  \frac{1}{2} *  9.109*10^{-31} * (2.371*10^6 )^2

=> E_k  =  2.56 *0^{-18} \  J

Generally the ionization energy is mathematically represented as

E_i  =  4.12 *10^{-18} -   2.56 *0^{-18}

=>     E_i  =  1.5596 *10^{-18} \  J

8 0
3 years ago
Having unclear expectations is part of which characteristic of adolescence?
mafiozo [28]

Answer:

undefined status

Explanation:

Adolescence stage of life is generally regarded as the period of life between the normal onset of puberty and the beginning of early adulthood. The stage of  puberty is characterized by  appearance of secondary sexual characteristics as well as the development of reproductive features.

Adolescent often have vague or unclear expectations as a result of the fact that many adults still regard adolescents as children even though some other adults may regard them as fellow adults.

This undefined status makes adolescents not to exactly know what to expect as their roles or rights in the society.

3 0
3 years ago
Read 2 more answers
you happen to visit the moon when some people on earth see a total solar eclipse. who has a better experience of this event, you
Vinil7 [7]
The friends left on earth because they can see the total eclipse, where as you are on the moon witnessing sections get dark rather than the whole picture
5 0
3 years ago
What should he do next in order to follow the steps of inquiry?
andrezito [222]

Since he wonders, then according to the formal, methodical procedures of scientific inquiry, he should not go running off and trying stuff before he <em>forms a hypothesis that can be tested.</em>

In his mind, at some point, he should say to himself <em>"Self !  It seems to me that if salt is added to water, it makes the water boil at a higher temperature than pure water does."</em>

And only THEN, with this statement in mind, he's ready to design an experiment to test it.

6 0
4 years ago
Need definitions for these please
77julia77 [94]
Ammonia=a colorless gas with a characteristic pungent smell. It dissolves in water to give a strongly alkaline solution.

Inert=lacking the ability or strength to move.

Nitrates=a salt or ester of nitric acid, containing the anion NO3− or the group —NO3.

Limiting nutrient S=Nitrogen and phosphorus are frequently called “limiting nutrients.” This means that at any given time, one or the other of these nutrients may be the hardest nutrient for a plant to acquire and therefore be the only nutrient that is limiting the plant's growth.
saturation=the state or process that occurs when no more of something can be absorbed, combined with, or added. The degree or extent to which something is dissolved or absorbed compared with the maximum possible, usually expressed as a percentage.

Eutrophication=excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
 Nitrification=Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The transformation of ammonia to nitrite is usually the rate limiting step of nitrification. Nitrification is an important step in the nitrogen cycle in soil.

Denitrification=Medical Definition of denitrification. : the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air.




5 0
4 years ago
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