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Stells [14]
3 years ago
10

What do the different colors in a line spectrum represent? why are the spectra for each element unique?

Physics
1 answer:
Lana71 [14]3 years ago
8 0
They typically represents different wavelengths of element due to its energy emission in the form of visible light. When an electron of that particular element move from a higher energy level down to a lower energy level, it gives off energy in the form of photon emission. Atom of a certain element has a unique electron arrangement thus it can considered that particular element's spectrum is unique.
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Nikolay [14]

Answer:

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3 0
2 years ago
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A car sitting at a red light begins to accelerate at 2.0 m/s2 when the light turns green. It continues with this acceleration un
KonstantinChe [14]

Answer:

d = 820 m

Explanation:

here we know that car starts from rest and continue to accelerate till it will reach to maximum speed of 20 m/s

so we will have

v_f - v_i = at

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so the distance moved by the car till it accelerates is given as

d = \frac{1}{2}at^2

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now it will move with uniform speed for next 36 s

so we have

d_2 = 20(36) = 720 m

so total distance moved by the car is given as

d = d_1 + d_2

d = 100 + 720

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8 0
3 years ago
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Explanation:

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