Answer:

Explanation:
We could use conversation of energy. Total distance the stone will cover will be

the Final velocity will be

As electrons move through the conductor, some collide with atoms, other electrons, or impurities in the metal.
Answer: Interneurons.
These interneurons transmit impulses to other neurons and thus form a part of the reflux arc.
The sentences are invalid and unsound.
<h3><u>Explanation</u>:</h3>
The fire is defined as the vigorous oxidation of a substance. Now oxidation can occur in presence of any oxidising agent. Like magnesium in presence of nitrogen in high temperature with a dazzling brownish flame to produce magnesium nitride. So fire can be produced in absence of oxygen.
Oxygen is present everywhere in world. So production of a whole room without oxygen is very tough to produce and costly process. So its very unsound.