Answer Wiki. An ICBM in ballistic flight constantly changes speed and altitude, so it's incorrect to think of a steady speed or altitude. A two- or three-stage booster burns for a few minutes, and accelerates the payload to a velocity of 6-7 km/sec .
The definition of grammar is the study of the way words are used to make sentences. An example of grammar is how commas and semicolons are supposed to be used. that part of the study of language which deals with the forms and structure of words (morphology), with their customary arrangement in phrases and sentences (syntax), and now often with language sounds (phonology) and word meanings (semantics)
In linguistics, syntax refers to the rules that govern the ways in which words combine to form phrases, clauses, and sentences. Adjective: syntactic. More simply, syntax can be defined as the arrangement of words in a sentence. The term syntax is also used to mean the study of the syntactic properties of a language. Syntax is one of the major components of grammar.