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ANEK [815]
3 years ago
14

A cup of tea is mixutre true or false​

Physics
1 answer:
Hitman42 [59]3 years ago
6 0

Answer:

this is very true

Explanation:

I I should know I'm a tea fanatic

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Vocabulary word for the total amount of charge in a closed system remains constant
Usimov [2.4K]

Answer:

i think this is it i dont know tho A conservation law stating that the total electric charge of a closed system remains constant over time, regardless of other possible changes within the system. "Conservation of charge." YourDictionary. LoveToKnow

7 0
3 years ago
Which event would be impossible to explain by using john dalton’s model of the atom?
Troyanec [42]

Answer: An iron atom emits particles when it is struck by light (by the photoelectric effect)

Explanation:

The first atomic model was the one proposed by Jhon Dalton, according to which it is postulated that:

"Matter is made up of indivisible, indestructible and extremely small particles called atoms."

That is, <u>the atom is a solid and indivisible mass. </u>

However, the fenomenom by which an iron atom emits particles when it is struck by light (known as the photoelectric effect) can not be explaind by this<u> indivisible atom</u> model.

To understand it better:

The <u>photoelectric effect</u> consists of the emission of electrons (electric current) that occurs when light falls on a metal surface under certain conditions.

This is possible by considering light as a stream of photons, where each of them has energy. <u>This energy is be able to pull an electron out of the crystalline lattice of the metal and communicate, in addition, a kinetic energy.  </u>This means the atom is not indivisible, but it is a composition of different particles.

In fact, currently it is known that each atom is composed of a nucleus and one or more electrons attached to the nucleus, which is composed of one or more protons and typically a similar number of neutrons.

8 0
3 years ago
Read 2 more answers
Please help I’m so confused
elena55 [62]

Answer:

The velocity of sound is greatest in option a water option be here option c vacancy option d metals.

Explanation:

5 0
3 years ago
How the movement of the earth cause the appeared daily and annual movement of the sun and stars​
timurjin [86]
As the Earth rotates on it’s axis we perceive the sky differently depending on where we are. This is known as a day, where the Earths rotation controls the day/night cycle. As Earth orbits the sun our axis wobbles, thus at different times in the year different regions of the Earth can see different areas in the sky.

Hope this helps!
7 0
3 years ago
Oxygen is a reactant in a combination reaction, which always produces energy in the form of heat and light. A. True B. False
harkovskaia [24]
The answer is B.False
8 0
3 years ago
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