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zmey [24]
3 years ago
9

changes in which the form or shape of a substance changes but the substance keeps its identity are called

Physics
1 answer:
sveta [45]3 years ago
5 0
The answer is physical changes....
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In his famous experiment, Rutherford fired alpha particles at a thin gold film. Most of the alpha particles went through the fir
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Answer:

1. The nucleus is about 1/2 the size of the atom

Explanation:

Alpha particles are positive charge particles and they are bounced back by the nucleus because nucleus is also same size

Now in present experiment Rutherford found that very few alpha particles are bounced back along same path which shows that very small region inside the nucleus is having positive charge and rest part of the atom is empty.

Now if we found that half of the alpha particles are bounced back then it shows that size of the nucleus is very large now as compare to previous one because only nucleus can bounce back the alpha particles

so correct answer will be

1. The nucleus is about 1/2 the size of the atom

5 0
3 years ago
The<br> is the particle in the nucleus with a positive charge.<br> Answer here
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Answer: A proton is a positively charged particle located in the nucleus of an atom.
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3 years ago
What does the formula "F=m xa" mean?​
strojnjashka [21]

Answer:

Force = Mass x Acceleration

Explanation:

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The layer of the Earth that is composed of large plates that interlock and move over time is the _______. asthenosphere lithosph
siniylev [52]
The lithosphere because it includes the outer region of the earth including the crust and outer mantle
4 0
3 years ago
Read 2 more answers
An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s squared. What ar
Iteru [2.4K]
The direction of the electric field would be south. 

qE/m = 115 
<span>       E = 115*m/q </span>
<span>           = 115 * 9.1 * 10^(-31) / 1.67*10^(-19) </span>
<span>           = 762.87 * 10^(-12) </span>
<span>           = 6.27 x 10^-10 N/C
</span>
Hope this answers the question. Have a nice day. Feel free to ask more questions.
6 0
3 years ago
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