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  2. Delta-v - Wikipedia

    en.wikipedia.org/wiki/Delta-v

    Delta-v is typically provided by the thrust of a rocket engine, but can be created by other engines. The time-rate of change of delta-v is the magnitude of the acceleration caused by the engines, i.e., the thrust per total vehicle mass. The actual acceleration vector would be found by adding thrust per mass on to the gravity vector and the ...

  3. Tsiolkovsky rocket equation - Wikipedia

    en.wikipedia.org/wiki/Tsiolkovsky_rocket_equation

    A rocket's required mass ratio as a function of effective exhaust velocity ratio. The classical rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that follow the basic principle of a rocket: a device that can apply acceleration to itself using thrust by expelling part of its mass with high velocity and can thereby move due to the ...

  4. Delta-v budget - Wikipedia

    en.wikipedia.org/wiki/Delta-v_budget

    Delta-v in feet per second, and fuel requirements for a typical Apollo Lunar Landing mission. In astrodynamics and aerospace, a delta-v budget is an estimate of the total change in velocity (delta-v) required for a space mission. It is calculated as the sum of the delta-v required to perform each propulsive maneuver needed during

  5. Orbital maneuver - Wikipedia

    en.wikipedia.org/wiki/Orbital_maneuver

    The applied change in velocity of each maneuver is referred to as delta-v (). The delta-v for all the expected maneuvers are estimated for a mission are summarized in a delta-v budget. With a good approximation of the delta-v budget designers can estimate the propellant required for planned maneuvers.

  6. Orbital inclination change - Wikipedia

    en.wikipedia.org/wiki/Orbital_inclination_change

    The delta-v required is the vector change in velocity between the two planes at that point. However, maximum efficiency of inclination changes are achieved at apoapsis , (or apogee ), where orbital velocity v {\displaystyle v} is the lowest.

  7. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/dying-to-be-free...

    There's A Treatment For Heroin Addiction That Actually Works. Why Aren't We Using It?

  8. Valerie Bertinelli Marks 2 Years Since Divorce and Thanks ...

    www.aol.com/lifestyle/valerie-bertinelli-marks-2...

    Valerie Bertinelli is celebrating two years of personal growth.. The Food Network, 64, alum finalized her divorce from ex-husband Tom Vitale on Nov. 22, 2022. “Today marks two years of freedom ...

  9. Rocket - Wikipedia

    en.wikipedia.org/wiki/Rocket

    This delta-v means that the speed increases (or decreases) by a particular amount, independent of the initial speed. However, because kinetic energy is a square law on speed, this means that the faster the rocket is travelling before the burn the more orbital energy it gains or loses.