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Tju [1.3M]
3 years ago
15

NEVERMIN I've got it. :D

Physics
1 answer:
Tom [10]3 years ago
3 0
So you don't need help, if you do then lmk and i'll help
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In what way is a piano an example of a quantized system?
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When you play a piano, your energy increases in a uniform, continuous manner and is therefore quantized.When you play a piano, you can press only on individual keys, so that your energy is restricted to certain values and is therefore quantized.

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1. Calculate the height of tree, 250 m away that produces
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Answer:

Explanation:

1.5/30 = x/250

x = 12.5 m

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1) A pendulum is configured to have a period of 2 seconds.
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If the distance from a light source triples, how does light intensity change? The intensity will be 3x greater. The intensity wi
Tcecarenko [31]

Answer:

The intensity will be 1/9 as much.

Explanation:

The intensity of the light or any source is inversely related to the square of the distance.

I\alpha \frac{1}{r^{2} }

Now according to the question the distance is increased by three times than,

\frac{I_{2} }{I_{1} }=\frac{r_{1}^{2} }{r_{2}^{2} }

Therefore,

\frac{I_{2} }{I_{1} }=\frac{r_{1}^{2} }{(3r_{1})^{2} }\\\frac{I_{2} }{I_{1} }=\frac{1}{9} \\{I_{2}=\frac{1}{9}{I_{1} }

Therefore the intensity will become 1/9 times to the initial intensity.

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3 years ago
Si el número masico del elemento litio es 7 ¿cual es su nucleo?
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El núcleo tiene 3 protones (lo que le da al núcleo una carga de +3, identificándolo como el elemento Litio) y 4 neutrones (lo que le da un número total de masa de 7).
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