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9966 [12]
2 years ago
13

Ce unitate de masura are indicele de REFRACTIE?

Physics
1 answer:
ivolga24 [154]2 years ago
3 0

Answer:se obesrva ca indicele de refractie NU are unitate de masura, este adimensional. Se exprima print-un raport, de exemplu 4/3, 1,5 etc.

Explanation:

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A car traveling at 100km/hr .how many hours will it take to cover a distance of 750 km
grin007 [14]

Answer:

7.5 right?

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4 0
2 years ago
Read 2 more answers
una onda longitudinal tiene una frecuencia de 200 hz y una longitud de onda de 4.2m ¿cual es la rapidez de la onda?​
swat32

Answer:

v = 8.4 m/s

Explanation:

The question ays, "A longitudinal wave has a frequency of 200 Hz and a wavelength of 4.2m. What is the speed of the wave?".

Frequency of a wave, f = 200 Hz

Wavelength = 4.2 cm = 0.042 m

We need to find the speed of the wave. The formula for the speed of a wave is given by :

v=f\lambda\\\\v=200\times 0.042\\\\=8.4\ m/s

So, the speed of the wave is equal to 8.4 m/s.

4 0
2 years ago
13. How many electrons does a complete third electron shell hold?
ale4655 [162]

Answer:

  • A) 8

<u>A complete third electron shell holds </u><u>8</u><u> electrons</u>

<u>---------------------------</u>

<u>hope it helps...</u>

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6 0
2 years ago
The diagram illustrates the movement of sound waves between an observer and a race car. As the race car drives away from the obs
Andrei [34K]
I believe the answer is d
6 0
3 years ago
When a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude f = ax, where a is a constant. th
Veseljchak [2.6K]
Given:
F = ax
where
x = distance by which the rubber band is stretched
a =  constant

The work done in stretching the rubber band from x = 0 to x = L is
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Answer:  \frac{aL^{2}}{2}

4 0
3 years ago
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