Walter is generally used as a boy's name. It consists of 6 letters and 2 syllables and is pronounced Wal-ter. In the U.S. in 2014, it ranked 337 in baby name popularity for boys with 977 occurrences.Less than 5 girls were given the name.alter is generally used as a boy's name. It consists of 6 letters and 2 syllables and is pronounced Wal-ter. In the U.S. in 2014, it ranked 337 in baby name popularity for boys with 977 occurrences.
Impulse is defined as a force multiplied by the amount of time it acts over. In calculus terms, the impulse can be calculated as the integral of force with respect to time. Alternately, impulse can be calculated as the difference in momentum between two given instances.
Specific impulse. Specific impulse (usually abbreviated Isp) is a measure of the efficiency of rocket and jet engines. By definition, it is the total impulse (or change in momentum) delivered per unit of propellant consumed and is dimensionally equivalent to the generated thrust divided by the propellant flow rate. If mass (kilogram or slug) is used as the unit of propellant, then specific impulse has units of velocity.