Triangles Can be Solved Using: 1  Pythagoras's Theorem. 2  Sine Rule. 3  Cosine Rule. 4  Angles all add up to 180 degrees.
Report Abuse. sound travels fastest in solid substances. as in solids, the medium is denser and it aids the propogation of sound. sound will not travel in vaccum as they will not propogate if no material medium is present. in air it travels with the speed of 350 m/s which is less than the speed of sound in solids.
How Fast is Mach 1. The speed of sound is one of the key speed barriers in physics. It is also important because it one of the few natural speed barriers mankind has been able to break. However when we here the term Mach 1 it is easy to assume it is the speed of sound through Earthâs atmosphere. However this term is more loaded than you might think.