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Computer Science 9 Online
OpenStudy (anonymous):

You have a frustrating day and just feel like screaming; you grab a pillow to scream into it. Which interaction of sound would take place here, (reflection, refraction or absorption), and how did the sound waves move?

OpenStudy (konradzuse):

what do you think?

OpenStudy (konradzuse):

Is the sound of the pillow greater or less than it would be in air?

OpenStudy (anonymous):

3 facts about the inner and outer core including: what they are made of and their approximate temperature

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