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denis23 [38]
2 years ago
6

Hello Can anyone help me. ​

Physics
1 answer:
labwork [276]2 years ago
3 0

(G)-->Iron and steel industry is called a heavy industry because all the raw material as well as finished goods are heavy and bulky entailing heavy transportation costs. Iron ore, coking coal and limestone are required in the ratio of 4:2:1 approximately. Some quantity of manganese is also required to harden the steel.

(H)-->Sodium is very reactive in nature. When exposed in air, it automatically forms Na2O. When it is put in water it reacts vigorously and starts burning on water. Due to the above reasons Sodium is called an active metal.

(I)-->Down the group, the effective nuclear charge experienced by valence electrons is decreasing because the outermost electrons are far away from the nucleus. Thus, these electrons can be lost easily by the element to form positive ions. Hence, the chemical reactivity of metals increases on going down a group.

(J)-->While moving from top to bottom in a group of the periodic table, the reactivity of non- metals decreases. While moving from top to bottom in a group of non- metals, the atomic size increases with the additional number of shells and the force of attraction between the nucleus and valence shell decreases.

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A rock is thrown vertically upward from some height above the ground. It rises to some maximum height and falls back to the grou
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Answer:

At the highest point the velocity is zero, the acceleration is directed downward.

Explanation:

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I attached an image from my lecture today, I find it to be helpful. You can see that because of gravity the acceleration is pulled downwards.

At the highest point the velocity is 0, but it's changing direction and that's why there's still an acceleration there.

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3 years ago
In an electronic transition an atom can not emit what?
iren [92.7K]
█ Question <span>█

</span><span>In an electronic transition, an atom cannot emit what?

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When an electronic transition is occurring, an atom cannot emit ultra-violet light. 

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7 0
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Luden [163]
<span>1. 10x
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7 0
3 years ago
Read 2 more answers
Where would you find an inclined plane in a fan
ivanzaharov [21]
The blades that spin around in the fan, because they are flat and produce work
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tresset_1 [31]

Answer:

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