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March 31, 2015

March 31, 2015

Posted by **Jeremiah** on Wednesday, January 16, 2013 at 2:01pm.

- Physics -
**Elena**, Wednesday, January 16, 2013 at 4:01pmsinα =9/20 =0.45

α=sin⁻¹0.45 =26.7⁰

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