3 years ago

Why must the Ojibwe people pay close attention to the seasons?

1 answer:

4 0

Answer:C. They must know the right time of year for gathering certain foods

Explanation:

I got it correct

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Inessa [10]

Answer:

The value is $n = 1.081$

Explanation:

From the question we are told that

The speed of in a vacuum is $c = 3.0 *10^{8} \ m/s$

The speed of light in the material is $v = c -0.075c = 0.925 c = 0.925 * 3.0*10^{8} = 2.775 *10^{8} \ m/s$

Generally the reflection of the material is mathematically represented as

$n = \frac{c}{v}$

=> $n = \frac{3.0*10^{8}}{2.775 *10^{8}}$

=> $n = 1.081$

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Visible light has a shorter wavelength than radio waves

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Answer: Idk I think I forgot

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telo118 [61]

The answer is decrease

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Alex777 [14]

Answer:

Energy of wave will increase as the energy of wave is related to the amplitude of wave

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