The first hurdle to overcome for any given material you wish to use as a bullet is: Will this material hold its ' form after and while being fired from a gun? The target location of a gun to determine whether or not a bullet will hold its ' form is the barrel, which is usually made out of iron (Bealer 397). Guns can come in various shapes and sizes, which can, and usually does, determine the speed at which the barrel becomes overheated. The melting point of iron, concise, stable, and never changing is two thousand, seven hundred and sixty-eight degrees Fahrenheit (Babel.hathitrust.org). Because all guns are different and thus have different "breaking points", it 's not possible to track down and note each
The factors at play during the catapult test were the most complicated out of all three tests. One of these factors was projectile motion. Projectile Motion is motion under the influence of gravity and is represented by the equation h(t) = –4.9t2 + v0t + h0, where v is equal to the initial velocity of the object and h is equal to the initial height of the object. The initial height of the object should have been the same because the soccer ball was released by pulling 91 cm (3 ft) back and 61 cm (2 ft) down. This means that the velocity had to change for the results to have any variation. Newton’s Second Law applies to this test as well. The greater the mass of the ball, the more force it will require to achieve the same velocity as the balls that weigh less than it. So, the balls with lower pressures should have performed better. However, potential energy also applies here. PE=mgh. The acceleration due to gravity and the height were the same, but the mass changed. With a decrease in mass comes a decrease in potential energy. So, the potential energy would have been greater with balls of a higher pressure. Kinetic energy also came into play in the catapult test, but it was balanced. KE=
A firearm is one of the weapons that may be used when hunting. A firearm utilizes pressure produced from the burning of gunpowder to create gas. The pressure produced from the burning powder propels a projectile out of the barrel at a target. In rifles and most handguns the barrel has rifling on the inside of the barrel to make the projectile spin to travel better in the air. Rifling are groove that spin as they go through the inside of the barrel. Shotgun barrels are smooth and can fire “slugs”, a single projectile, or “shot”,
For the test tube with the ratio of Acetylene to air is 1:3, a flame traveled down a test tube even slower, there was a slight popping noise and black residue . For the test tube with the ratio of Acetylene to air is 1:7, a flame traveled quickly down a test tube, popping noise and less black residue. Refer to table 1 for the specific lab results.
Another very powerful gun that was used in World War II was the Submarine guns. The submarine guns are much stronger and better than normal guns due to the fact that they have better firing distances (Military History 7). The submarine gun was built mainly for endurance and for accuracy. This gun had the accuracy to fire from 800 to at least 1,000 yards away and delivers a powerful blow to its victims. One problem which the gun had was the fact that it could dislocate a soldiers arm whenever it was fired. But finally the submarine gun was improved and is now less powerful which makes it easier for firing full automatic rounds along with pistol rounds (8).
Air Trajectory: Gravitational Energy and Projectiles Air trajectory is the physics of how an object moves through a “fluid” which can be a liquid or a gas. In the event of Air Trajectory, students launch projectiles a certain distance using gravitational energy in the form of a dropping weight. The involved science is more about the most efficient method of launch rather than how the projectile moves through the air.
RUGER AIR MAGNUM COMBO AIR RIFLE REVIEW The Ruger Air Magnum Combo is a break barrel, spring piston air rifle which gives hard-hitting power. It can attain an impressive velocity of 1400 fps, above average for its class. Some nice features of the rifle are the adjustable two-stage trigger and the automatic safety.
“This variation has a design of a smaller breach that fired a cartridge of 76.2x585R, allowing a breach that will automatically open after the firing of each cartridge” (Ordnance, T. O, 1920). This was an innovative concept that allows the firing of multiple rounds at a greater rate to help with the adjustment needed when firing at an aircraft traveling at a high velocity, attitude, and altitude. “The muzzle velocity of this weapon firing a 15-pound shell, with either shrapnel or explosive charge, is 2,400 feet per second” (Ordnance, T.O, 1920). The maximum
A Rifle could shoot a bullet up to 1,000 yards–and were more accurate. However, until the 1850s it was nearly impossible to use these guns in battle because, since a rifle’s bullet had roughly the same diameter as its barrel, they took too long to load. (Soldiers sometimes had to
How did the Minié Ball Affect Infantry Tactics in the U.S. Civil War? The U.S. civil war was the most bloody conflict that the U.S. had ever been involved in. It brought over 1,100,000 casualties from both sides, with over ninety percent of these casualties resulting from small- arms fire (Howey “Weaponry, the Rifle-Musket and the Minié ball”). The Minié Ball has been widely attributed to a majority of these cases. The Ball was a bullet developed by Claude-Étienne Minié and Henri-Gustave Delvigne in 1849 after the two French officers decided to improve on a currently existing design (HistoryNet “Minié Ball”). The pair also designed a rifle, a gun containing a barrel with grooves running in a corkscrew fashion along the length of the barrel. These grooves caught the bullet as it traveled down the barrel and spun it, greatly increasing the velocity and accuracy of the bullet as it left the barrel. Compared to the earlier musket balls, which bounced around in the barrel and exited at an unpredictable angle, it was much more accurate. When the bullet arrived in the United States, James Burton at the arsenal in Harper’s Ferry, Virginia, simplified the bullet into the .58 calibre widely used in the Civil War (Leonard “The Bullet That Changed History”). The ball, made of soft lead, featured a conical shape and a hollow center. This allowed it to expand to fit the barrel when shot out of the gun and easily engage the rifling, making it more aerodynamic and capable of flying at
The higher the pressure, the harder and more firm the football becomes. Conversely, the lower the pressure, the more give the ball has, potentially making it easier to catch in cold, slick weather. But lighter balls are also more influenced by air resistance. (Pigskin Physics)
In theory machine-guns in WW1 could fire up to 600 small-calibre rounds per minute. In reality they were prone to overheating and would break down without some sort of cooling system in place. Water jackets were initially used, but the guns would still overheat quite quickly and large supplies of water had to be kept on hand. As such, they were typically fired in short bursts rather than sustained fire. However, by the end of the war machine-gun design had drastically improved. They could fire double the rate that was capable in 1914 with sophisticated air-cooling systems built into the designs.
The railgun is a long-range gun that fires a rail to puncture steel and other materials. Rails can reach speeds of up to Mach 6. Mach is the measurement of speed, Mach 1 is the equivalent of 767 mph. The range of the rail gun is up to 100 plus miles greatly outranging the range of normal guns but the railgun is still in development.
Another very powerful gun that was used in World War II was the Submarine guns. The submarine guns are much stronger and better than normal guns due to the fact that they have better firing distances (Military History 7). The submarine gun was built mainly for endurance and for accuracy. This gun had the accuracy to fire from 800 to at least 1,000 yards away and delivers a powerful blow to its victims. One problem which the gun had was the fact that it could dislocate a soldiers arm whenever it was fired. But finally the submarine gun was improved and is now less powerful which makes it easier for firing full automatic rounds along with pistol rounds (8).
(Melvin, Mangonel - “Physics of Catapults”) The speed and distance of the projectile depended on how much force the catapult applied to the projectile, and the momentum depended on the mass and the velocity of the projectile (dead diseased cow, or flaming