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  2. Muzzle velocity - Wikipedia

    en.wikipedia.org/wiki/Muzzle_velocity

    For projectiles in unpowered flight, its velocity is highest at leaving the muzzle and drops off steadily because of air resistance.Projectiles traveling less than the speed of sound (about 340 m/s (1,100 ft/s) in dry air at sea level) are subsonic, while those traveling faster are supersonic and thus can travel a substantial distance and even hit a target before a nearby observer hears the ...

  3. Bullet - Wikipedia

    en.wikipedia.org/wiki/Bullet

    Expanding bullet loaded in a 6.5×55mm before and after expanding. The long base and small expanded diameter show that this is a bullet designed for deep penetration on large game. The bullet in the photo traveled more than halfway through a moose before coming to rest, performing as designed.

  4. Physics of firearms - Wikipedia

    en.wikipedia.org/wiki/Physics_of_firearms

    Let m b and v b stand for the mass and velocity of the bullet, the latter just before hitting the target, and let m t and v t stand for the mass and velocity of the target after being hit. Conservation of momentum requires m b v b = m t v t. Solving for the target's velocity gives v t = m b v b / m t = 0.016 kg × 360 m/s / 77 kg = 0.07 m/s = 0 ...

  5. External ballistics - Wikipedia

    en.wikipedia.org/wiki/External_ballistics

    The Pejsa model allows the slope factor to be tuned to account for subtle differences in the retardation rate of different bullet shapes and sizes. It ranges from 0.1 (flat-nose bullets) to 0.9 (very-low-drag bullets). If this slope or deceleration constant factor is unknown a default value of 0.5 is used.

  6. Ben Joyce's 105.5-mph strikeout pitch is fastest ever. Angels ...

    www.aol.com/news/ben-joyces-105-5-mph-162523432.html

    Angels closer Ben Joyce threw a 105.5-mph fastball to strike out Dodgers' Tommy Edman, making the pitch the fastest recorded to fan a hitter and third-fastest overall.

  7. Subsonic ammunition - Wikipedia

    en.wikipedia.org/wiki/Subsonic_ammunition

    Subsonic loads for 9×19mm Parabellum commonly use 9.5 g (147 gr) bullets at velocities of 300 m/s (980 ft/s). For these ammunition loads, balancing bullet weight and velocity are required to ensure that the ammunition will still reliably cycle semi-automatic firearms. Subsonic ammunition with normal bullet weights often fails to function ...

  8. Internal ballistics - Wikipedia

    en.wikipedia.org/wiki/Internal_ballistics

    For handgun cartridges, with heavy bullets and light powder charges (a 9×19mm, for example, might use 5 grains (320 mg) of powder, and a 115 grains (7.5 g) bullet), the powder recoil is not a significant force; for a rifle cartridge (a .22-250 Remington, using 40 grains (2.6 g) of powder and a 40 grains (2.6 g) bullet), the powder can be the ...

  9. Can you drive 10 mph over the speed limit to keep up with ...

    www.aol.com/drive-10-mph-over-speed-110000027.html

    10-14 MPH: $100. 14-19 MPH: $125. 19-24 MPH: $150. 24-34 MPH: $500. If you are driving faster than 85 mph, you’ll probably be getting a super speeder ticket which will cost around $200, plus ...