Waves are affected by the characteristics of the medium through which they travel. Density affects wave speedâwaves generally travel slower in dense materials and faster in less-dense materials. For example, a sound wave travels nearly three times faster in helium than in air; helium is less dense than air.
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A power steering pump for a 1996 Toyota Camry can cost between $90  and $150 plus a $35 to $55 core charge. The exact cost will vary  depending on the specific model and engâ¦ine, retailer, brand of  part, and if the part is new or rebuilt. Answered.