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.
Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which we will call the pivot point, and will label 'O'. We will call the force 'F'. The distance from the pivot point to the point where the force acts is called the moment arm, and is denoted by 'r'.