Answer:
shielding of electrons
Explanation:
The addition of electrons shells results in the shielding of electrons away from the nucleus, most importantly the nuclear pull resulting from the charge.
- The nucleus pulls electrons to itself due to the net positive charge on it.
- As more electronic shell is added, the effect of the pull weakens outward.
- The inner shell experiences the nuclear pull more than the outer shell electrons.
The effect is responsible for a wide range of properties of elements.
three types
The three types of thermal expansions are Linear expansion , Superficial expansion and Cubical expansion.
"A" I think, not sure tho.
The tangent of that angle is 17.63/100 = 0.1763 .
My calculator says that the angle with that tangent is 9.9985° .
10° is awfully close, and it's a much easier answer.
(It's less than 0.015% wrong.)
Answer:
The total displacement of the car is 250 km.
Explanation:
Given that,
A car at a position 150 km [W] of Toronto travels to a position 400 km [W] of Toronto.
Total displacement = final position - initial position
= 400 km - 150 km
= 250 km
So, the total displacement of the car is 250 km.