1.) a.) If 1 km = 1,000 m and 1 m = 1,000 mm, Convert 2.0 x 10⁶ mm into the equivalent value in km.

b.) There are 1,760 yards in a mile and 0.621 miles in 1 km. If you sprinted the equivalent of 20 football fields (each 100 yrds long), how many miles did you sprint?

c.) If there are 1.609 km in a mile, convert 135 miles/hour into meters per second. (There are 1000 m in a kilometer.)

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line