2 years ago

Which characteristic surface of the moon contains the same rock as the ocean floor

Physics

1 answer:

Ratling [72]2 years ago

3 0

The answer is Maria or Lunar mare because they are both made of basalt. Hope this helps.

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What is the λ (in m) of an electromagnetic wave that has a frequency of 5.68 x 107 Hz? Enter a numerical response in 3 significa

denpristay [2]

Answer:

Wavelength of electromagnetic wave will be 5.281 m

Explanation:

We have given frequency of electromagnetic wave is $f=5.68\times 10^7Hz$

Velocity of electromagnetic wave is $c=3\times 10^8m/sec$

We have to fond the wavelength of the electromagnetic wave

We know that velocity of electromagnetic eave is given by $v=\lambda f$ , here $\lambda$ is wavelength and f is frequency

So $\lambda =\frac{v}{f}=\frac{3\times 10^8}{5.68\times 10^7}=5.281m$

Wavelength of electromagnetic wave will be 5.281 m

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nirvana33 [79]

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After Moseley's discovery in 1913, the periodic law stated that physical and chemical properties tend to repeat periodically whe

stich3 [128]

Answer:

Option B

Explanation:

The correct answer is Option B.

Before Moseley's discovery in 1913, In Mendeleev's periodic table the elements rearranged with increasing atomic mass.

Mendeleev was not able to locate hydrogen atom and late isotopes found violate Mendeleev table. The biggest drawback was that the atomic mass was not regular when moving one element to another.

But Moseley's arranged element in the periodic table with increasing atomic number.

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