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aev [14]
3 years ago
11

g In this next question electrons of a given kinetic energy - instead of photons - are incident to an atom. While photon absorpt

ion is an all or nothing process, electrons can loose also just some kinetic energy. Interaction of these electrons with the atoms in the target may result in emission of photons. Which of the following statements are true? Select all answers that apply. The kinetic energy of the "beam" electrons exceeds the binding energy of an electron in the target atom. The atom becomes ionized; left behind is a vacancy in a lower energy bound state. The kinetic energy of a "beam" electron exceeds the energy necessary to excite an electron (in the target atom) into an unoccupied higher energy level of another bound state. Electrons (from the beam) can only give off all their kinetic energy in one interaction. Electrons (from the beam) can interact several times with the target atom and lose some of their kinetic energy in each such interaction process.
Physics
1 answer:
Umnica [9.8K]3 years ago
3 0

Answer:

C

Explanation:

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The four terrestrial planets are so called because they ?
velikii [3]
Well, you need no look further than the word "terrestrial" If you notice the beginning of the word you notice that it consists mostly of the word "terra" Terra by definition is just land. Due to the solid land of these 4 planets, they're called terrestrial planets, the other 4 aren't made of land but of gas which is why they aren't classified as terrestrial planets.
8 0
3 years ago
Read 2 more answers
Which of these atoms is the most electronegative? select one: a. si b. cl c. p d. f e. c
katrin [286]

The atom that is the most electronegative is fluorine (F).

<h3>What is electronegative?</h3>

Electronegativity, is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.

Electronegativity increases across the groups from left to right of the periodic table and decreases down the group.

Examples of electronegative elements arranged in decreasing order;

  • fluorine,
  • oxygen,
  • nitrogen,
  • chlorine,
  • bromine,
  • iodine,
  • sulfur,
  • carbon, and
  • hydrogen.

Thus,  the atom that is the most electronegative is fluorine (F).

Learn more about electronegativity here: brainly.com/question/24977425

#SPJ1

4 0
2 years ago
Explain what 'vibrating' means.
drek231 [11]

Answer:

Vibrating means to move quickly to and fro.

Explanation:

6 0
3 years ago
What is the acceleration of a car going 50 mph that slows down to rest over 10 seconds?
VladimirAG [237]

Answer:

If the velocity is constant, then there is no acceleration. That is, the value of the acceleration is 0.

Explanation:

6 0
3 years ago
A very large sheet of insulating material has had an excess of electrons placed on it to a surface charge density of –3.00nC/m2
lys-0071 [83]

Answer: sheet of charge

Explanation:

a )

Since the charge is negative , potential will be negative near it . At a far point potential will be less negative. So potential will virtually increase on going away from the sheet . At infinity it will become almost zero. Electric field will be towards the plate , so potential will decrease towards the plate.

b ) The shape of equi -potential surface will be plane parallel to the sheet of charge because electric field will be perpendicular to the sheet of charge and almost uniform near the sheet of charge.   The equi- potential surface is always perpendicular to electric field.

C ) Electric field which is almost uniform near the sheet of charge is equal t the following

E = σ / ε₀ where  σ is charge density of surface and  ε₀ is permittivity of medium whose value is 8.85 x 10⁻¹²

E = 3 x 10⁻⁹ / 8.85 x 10⁻¹²

= .3389 x 10³

= 338.9 V / m

spacing between 1 V

= 1 / 338.9 m

= 2.95 X 10⁻3 m

= 2.95 mm.

3 0
3 years ago
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