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3 years ago

HELP FREE BRAINLIEST

Chemistry

2 answers:

liberstina [14]3 years ago

6 0

The universe comes into existence is first
The first neutral atoms form is second
The universe begins expanding is third
Gases form that will later go to shape stars and galaxies is fourth
Atomic nuclei form is last

I'm almost certain that is correct. Do not take my word for this.

ki77a [65]3 years ago

5 0

1,4,5,3,2 this is correct i am pretty sure

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If you place rice on top or a speaker, what will happen to the rice when you turn the speaker on?

Dovator [93]

Answer:

The rice will move

Explanation:

the sound vibration and waves will cause the rice to move

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2 years ago

Before entering the cyclotron, the particles are accelerated by a potential difference V. Find the speed v with which the partic

vesna_86 [32]

Answer:

Speed, $v=\sqrt{\dfrac{2qV}{m}}$

Explanation:

The device which is used to accelerate charged particles to higher energies is called a cyclotron. It is based on the principle that the particle when placed in a magnetic field will possess a magnetic force. Just because of this Lorentz force it moves in a circular path.

Let m, q and V are the mass, charge and potential difference at which the particle is accelerated.

The work done by the particles is equal to the kinetic energy stored in it such that,

$qV=\dfrac{1}{2}mv^2$

v is the speed with which the particles enter the cyclotron

So,

$v=\sqrt{\dfrac{2qV}{m}}$

So, the speed with which the particles enter the cyclotron is $v=\sqrt{\dfrac{2qV}{m}}$ . Hence, this is the required solution.

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2 years ago

Science chemistry Question:<br>

shutvik [7]

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2 years ago

Why are hydrogen, lithium, and sodium classified as reactive elements?

Sergeu [11.5K]

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3 years ago

Determine the compound type for the following formulas: C12H22011 Mg(OH)2 H20 Cu3Zn2 Au <br>

Scorpion4ik [409]

Answer:

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Explanation:

7 0

3 years ago

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