Answer:
Atoms are the building blocks of cells, which are the building blocks of all things. Every thing that exists is comprised of cells of various elements and compounds, held together by atomic bonds.
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Explanation:
Answer:
When a molecule is excited to a higher state it often ends up in its lowest excited state S1 and then emits radiation.
Answer:
See explanation
Explanation:
When a helium blimp rises in the atmosphere, a point eventually comes when the buoyancy of the blimp compared to the air it displaces is no longer greater than gravity's pull on the blimp hence it stops rising.
A smaller blimp will rise more than a larger blimp at the same pressure because the weight of the blimp determines the altitude to which it will rise.
Answer:
Distance traveled in 1 hour = 65 meter
Distance traveled in 4 hour = 65 × 5 = 325
