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2 years ago

10

Skyscrapers are made of concrete and glass, concrete and glass are made of sand,so that makes skyscrapers giant sandcastles. Cha

nge my mind

2 answers:

gregori [183]2 years ago

7 0

Your a genius this make so much sense

stira [4]2 years ago

3 0

Awnswer:

what are the answer chosices

Explanation:

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2 years ago

A whale emits a subsonic sound wave with a frequency of 7 Hz. What is the period of this wave?

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Period of this wave, T = 0.142 seconds.

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2 years ago