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patriot [66]
3 years ago
6

Why is the moon’s surface cratered, but the Earth’s is not

Physics
1 answer:
Scorpion4ik [409]3 years ago
8 0

The comets hit the moon's surface because there is no atmosphere on the moon to protect it. The earth has an atmosphere so it is protected.

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kifflom [539]

Here is your answer

b) \huge 1.5× {10}^{11} Hz

REASON :

We know that

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So,

Frequency= Velocity/wavelength

Here,

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Wavelength= 2×10^-3 m

Hence,

Frequency= 3×10^8/2×10^-3

= 3/2 × 10^11

= 1.5× 10^11 Hz

HOPE IT IS USEFUL

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B is the answer to the question

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\sqrt{2}Answer:

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Which statements describe the energy in a food web? Select three options.
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