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.
It is a familiar emotion for athletes in the sliding sports. Whistler immediately became the fastest track in the world, eliciting speeds of nearly 96 m.p.h. (about 154 kilometers per hour) in luge, a sport in which riders lie on a sled and wear little protection but a skintight suit and a helmet.