Answer:
4.444... m/s
Explanation:
Because it increases by 40 m/s in 9 seconds so 40/9= 4.444... m/s
Answer: the electrons i.e their valence electron
Explanation: valence electron is the number of electron in the outermost shell of an atom. Infact it is the combining power of an element. The valence electron gives us a better understanding of how an element will react with other elements. This is the reason why elements with the same number of valence electron(s) are grouped together telling us that they exhibit similar chemical properties
The simplest indivisible particle is called the atom. So, this should be the simplest structure.. This is followed by the diatomic element which is a combination of two identical elements. Next, is the molecule which is composed of a group of atoms or same elements.. Finally, the most complex structure is the compound which consist of at least two elements. Thus, the answer is A.
1. B
2. C
3. E
4. D
5. A
6. B
7. A
8. E
9. A
Hope this helps!