Answer:
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Explanation:
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<span>When an electron moves from an excited state to the ground state, "Energy releases"
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A<span> barometer is used to measure air pressure. </span>
Answer:

Explanation:
Given that,
Angular speed of a skater, 
The moment of inertia of the skater, I = 0.6 kg-m²
We need to find the angular momentum of the skater. The formula for the angular momentum of the skater is given by :

Substitute all the values,

So, its angular momentum is equal to
.