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Alexandra [31]
3 years ago
10

What is a substance?

Physics
1 answer:
Marianna [84]3 years ago
4 0
OB is the correct answer
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An electron traveling parallel to a uniform electric field increases its speed from 2.0 * 107 m/s to 4.0 * 107 m/s over a distan
vodka [1.7K]

Answer:

E = 2.84 x 10⁵ N/ C

Explanation:

given,

initial speed of electron,u = 2 x 10⁷ m/s

final speed of electron, v = 4 x 10⁷ m/s

distance = 1.2 cm

electric field strength = ?

using equation of motion for acceleration of electron

v² = u² + 2 a s

(4\times 10^7)^2 = (2\times 10^7)^2 + 2 \times 0.012 \times a

a = \dfrac{12\times 10^{14}}{2\times 0.012}

    a = 5 x 10¹⁶ m/s²

now,

Force of electric field is equal to , F = q E

and we also know that F = m a

now,

E = \dfrac{ma}{q}

where q is the charge of electron = 1.6 x 10⁻¹⁹ C

m is mass of electron, m = 9.1 x 10⁻³¹ Kg

so,

E = \dfrac{9.1\times 10^{-31}\times 5\times 10^{16}}{1.6\times 10^{-19}}

       E = 2.84 x 10⁵ N/ C

the electric field strength is equal to E = 2.84 x 10⁵ N/ C

4 0
3 years ago
Read 2 more answers
Witch force is represented by arrow at c?
Rudiy27

Answer:

did u know there's no such thing as "pear cider."

Explanation:

8 0
3 years ago
Early in the twentieth century, a group of German psychologists noticed that people tend to organize a cluster of sensations int
yan [13]

Answer:

The correct option is D

D) Gestalt

Explanation:

In the earlier 20th century, a group of German scientists named Max Wertheimer, Wolfgang Köhler and Kurt Koffka, noticed that people tend to organzie a cluster of information into a Gestalt.

Gestalt is a German word which means the way things are placed or put together as a whole. In the field of phychology, it can be defined as a pattern or configuration. In this context, it included the human mind and its behavior as a whole.

The Gestalt theory states that:

"The whole of anything is greater than its parts and that attributes of the whole can't be deduced by analyzing any of the parts on their own accord"

5 0
3 years ago
How would the model change as the atom forms bonds? The third shell would have eight electrons after the atom gains seven electr
atroni [7]

Answer:

The third shell would be empty, so the eight electrons on the second level would be the outermost after the atom lost one electron

Explanation:

When an atom is bonded with other atoms, a more stable configuration must be reached, which is why the energy of the molecule is less than the energy of the individual atoms, for this to happen in general, electrons are shared or lost and gained in each atom, depending on the electronegative of the same.

If we analyze an atom within the molecule, its last shell is full, in the case of atoms with few electrons in this shell, they are lost and in the case of many electors in this shell, it gains electrons to have eight (8) in total.

When reviewing the different answers, the correct one is:

* The third shell would be empty, so the eight electrons on the second level would be the outermost after the atom lost one electron

4 0
3 years ago
Read 2 more answers
The additional product of the nuclear fission reaction shown in the
Arada [10]
The answer to your question is C.
8 0
4 years ago
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