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.
2014 Toyota HiLux 3.0-litre 4-cyl turbo-diesel SR manual - $42,490 (up $500) 2014 Toyota HiLux 3.0-litre 4-cyl turbo-diesel SR auto - $45,240 (up $750) 2014 Toyota HiLux 3.0-litre 4-cyl turbo-diesel SR5 manual - $51,740 (up $750) 2014 Toyota HiLux 3.0-litre 4-cyl turbo-diesel SR5 auto - $54,490 (up $1,000)
Base MSRP price range: $23,680 - $29,850. Toyota pioneered the small SUV market with the RAV4 nearly 20 years ago, but it faces tough competition today. The 2015 RAV4 is a very practical vehicle, with impressive rear seat and cargo room. The 175-horsepower 2.5-liter engine provides adequate acceleration and returns a respectable 24 mpg overall.