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Maslowich
3 years ago
8

Who Henry Mosléy?!!!​

Physics
1 answer:
Ulleksa [173]3 years ago
3 0

Answer:

Henry Moseley was an English physicist whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number.

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A box contains about 5.54 1021 hydrogen
Aleks [24]

Answer:E=33.71\ J

Explanation:

Given

No of atoms of hydrogen N=5.54\times 10^{21}

Temperature of room T=21^{\circ}\approx 294\ K

Thermal energy of the atoms is given by

E=\frac{3}{2}NkT

where k=boltzmann constant

E=\frac{3}{2}\times 5.54\times 10^{21}\times 1.38\times 10^{-23}\times 294

E=33.71\ J

Hence the energy of the atoms is 33.71\ J

5 0
3 years ago
A meteor moving through outer space continues to move on the same path until an outside force acts on it
Fittoniya [83]

Newton stated 3 laws that rules moving bodies:

First law - an object remains in its state (resting or moving at constant speed) unless acted upon a force

Second law - the force (F) of an object is equal to its mass (m) multiplied by its acceleration (a); F = m x a

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So, according to the First Law of Motion, the metor moving through outer space will continues its motion until an outside force acts upon it

6 0
3 years ago
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Please write something<br><br> What to do in case of a fire.<br> ~write a few sentences~
Zarrin [17]
Follow stop drop and roll if the fire is in the room
Other wise exit immediately and find the nearest fire point. Then when you are out phone the fire services.
I hope this helps :)
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How many protons does this atom have?
Brrunno [24]
The protons an atom has is 36
The neutrons an atoms has is 6
The electrons an atom is equal to the protons
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3 years ago
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Please answer this question given in the picture
elena-s [515]

A plane mirror forms a virtual image behind the mirror. The image is as far behind the mirror as the object is in front of it. A cannot see his image because the length of the mirror is too short on his side. However, he can see the objects placed at points P and Q, but cannot see the object placed at point R



Hope this helps Buddy!


~ Courtney

6 0
4 years ago
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