Read about the sound barrier, how people broke it, and why breaking it was important.The sound barrier happens at 760 miles per hour (1, 223 kilometers per hour). People learned about the sound barrier. People learned when they flew ... temperatures. Look at the graphs. How does temperature change the speed of sound?
|Title||:||Breaking the Sound Barrier|
|Publisher||:||Benchmark Education Company - 2006-01-01|