Vodafone Group Plc (VOD) is a British multinational telecommunications based out of Newbury, Berkshire, England. Founded in 1991, Vodafone offers a wide range of products and services across the globe. It operates in over 30 countries and partners with over 40 markets worldwide.
Originally Answered: What is a Mach number? It is the ratio of velocity of an object to the velocity of sound. If the Mach no is one then object is moving with the velocity of sound.
Mach number is the speed of an object moving through air, or any fluid substance, divided by the speed of sound as it is in that substance. At a temperature of 15 oC and at sea level, the speed of sound is 761.2 mph.asic: Mach is a measurement of the speed of sound in air. Therefore, mach6 is six times the speed of sound in air. 761.2 * 6 = 4,567.2 mile/hour (mph) More in depth: M â¦ ach is a relative measurement of speed and fluid temperature.