The extratropical zone reaches an occlusion. This is the time when the storm weakens after the central pressure begins to subside and then slowly becomes colder. The change lowers the high temperature when the cold front gets over the warm front.
The answer is A.
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Answer:
The answer is below
Explanation:
The intensity level (B) of a sound wave is given by:
B = 10log(I/I₀);
where I₀ is the threshold intensity = 1 * 10⁻¹² W/m², I is the intensity at distance 5 m, B is the intensity level = 52 dB
Substituting gives:
The pressure is given by:
No, interatomic bonds aren't broken during boiling.
Yes, intermolecular forces are overcome when water boils.
<h3><u>Explanation:</u></h3>
Boiling of water is a physical change of state that converts the liquid water into water vapour. This process takes place in 100°C.
In liquid water, there are different forces of attraction between the molecules of water, most importantly the van der Waal's force, and the hydrogen bonds. van der Waal's forces are very weak, so of negligible importance. But hydrogen bonding are of significant strength. They are present between the hydrogen atoms and the oxygen atoms of different molecules of water. During boiling, these forces are weakened by the increasing kinetic energy of molecules and the water molecules start to boil off as water vapour. There's no breaking of interatomic bonds, which would have produced hydrogen and oxygen gases instead of water vapour.
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