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OpenStudy (prominer10000):
The distance traveled by a sound wave through a substance is proportional to time. The graph shows this relationship for several substances. Which substances have a unit rate greater than 2 km/s? Choose ALL answers that are correct. A. cork B. glass C. lead D. titanium https://static.k12.com/calms_media/media/1557000_1557500/1557378/1/58c80ef907e43f4444fa46ff5a0f076ead084fbf/MS_IMB-1401029-190407.jpg
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OpenStudy (retireed):
Calculate the slopes of the lines to find your answer(s).
OpenStudy (welshfella):
the unit rates are given by the slope of the lines
OpenStudy (prominer10000):
so titanium and glass?
OpenStudy (prominer10000):
Those both have a greater unit rate of 2km/s
OpenStudy (prominer10000):
Am I right?
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OpenStudy (prominer10000):
@563blackghost @welshfella @retirEEd
OpenStudy (welshfella):
yes you are right
OpenStudy (retireed):
Yes very good!
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