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  2. AIM-120 AMRAAM - Wikipedia

    en.wikipedia.org/wiki/AIM-120_AMRAAM

    One was downed with an AIM-120, and one with an AIM-9 Sidewinder. [10] In 1998 and 1999 AMRAAMs were again fired by USAF F-15 fighters at Iraqi aircraft violating the No-Fly-Zone, but this time they failed to hit their targets. During spring 1999, AMRAAMs saw their main combat action during Operation Allied Force, the Kosovo bombing campaign.

  3. Range of a projectile - Wikipedia

    en.wikipedia.org/wiki/Range_of_a_projectile

    g is the gravitational acceleration—usually taken to be 9.81 m/s 2 (32 f/s 2) near the Earth's surface; θ is the angle at which the projectile is launched; y 0 is the initial height of the projectile; If y 0 is taken to be zero, meaning that the object is being launched on flat ground, the range of the projectile will simplify to:

  4. R-77 - Wikipedia

    en.wikipedia.org/wiki/R-77

    One has an upgraded motor to extend a range at high altitudes to as much as 120–160 km; it is known as the RVV-AE-PD (Povyshenoy Dalnosti—improved range). This variant has been test-fired and uses a solid-fuel ramjet engine. Its range puts it in the long-range class and is equivalent in range to the AIM-54 Phoenix.

  5. Newton's law of universal gravitation - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_universal...

    The equation for universal gravitation thus takes the form: =, where F is the gravitational force acting between two objects, m 1 and m 2 are the masses of the objects, r is the distance between the centers of their masses, and G is the gravitational constant.

  6. Gravitational constant - Wikipedia

    en.wikipedia.org/wiki/Gravitational_constant

    Cavendish's stated aim was the "weighing of Earth", that is, determining the average density of Earth and the Earth's mass. His result, ρ 🜨 = 5.448(33) g⋅cm −3, corresponds to value of G = 6.74(4) × 10 −11 m 3 ⋅kg −1 ⋅s −2. It is surprisingly accurate, about 1% above the modern value (comparable to the claimed relative ...

  7. Angular momentum - Wikipedia

    en.wikipedia.org/wiki/Angular_momentum

    The trivial case of the angular momentum of a body in an orbit is given by = where is the mass of the orbiting object, is the orbit's frequency and is the orbit's radius.. The angular momentum of a uniform rigid sphere rotating around its axis, instead, is given by = where is the sphere's mass, is the frequency of rotation and is the sphere's radius.

  8. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  9. RIM-162 ESSM - Wikipedia

    en.wikipedia.org/wiki/RIM-162_ESSM

    The ultimate version in this line was the R model, which introduced a new dual-seeker homing system and many other upgrades. In the air-to-air role, however, this was passed over in favor of the AIM-120 AMRAAM, which offered much higher performance from a smaller and lighter missile. Development of the air-to-air Sparrow ended in the 1990s.