thrashergirl7
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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

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 class=

Respuesta :

B and D
You simply divide the distance by the time for each substance. The result was greater than 2 for both titanium and glass.
Hope this helps!