Gun Definition and 311 Threads

Homework Statement An enemy ship is on the western side of a mountain island. The enemy ship can maneuver to within 2500 m of the 1800 m high mountain peak and can shoot projectiles with an initial speed of 250m/s. If the eastern shore line is horizontally 300m from the peak, what are the...

Homework Statement A student decides to measure the muzzle velocity of a pellet shot from his gun. He points the gun horizontally. He places a target on a vertical wall a distance x away from the gun. The pellet hits the target a vertical distance y below the gun. (a) Show that the position of...

For my Final Project for my AP Physics class is a rail gun. But I am having trouble getting it to fire anything or even move it. I have no trouble charging the bank but when it is discharged into the rails the projectile doesn't move. I am using 11, 330v disposable camera capacitors in...

http://www.nydailynews.com/news/politics/2009/05/04/2009-05-04_aww_shoot_nra_makes_palin_top_gun.html#ixzz0EaYytlRs&A http://assets.nydailynews.com/img/2009/05/04/graf_palin-gun.jpg Too funny!

Homework Statement 1. A Turbo Booster toy that launches a 60-gram “insect” glider projectile by compressing a helical spring and then releasing the spring when the trigger is pulled. When pointed upward the glider should ascend approximately 8 m before falling. The launcher is made with...

How do you calculate the forces experenced upon a paintball when being fired through the barrel of a paintball gun? Barrel length being 12" final velocity being 100m/s^2

hey folks. i posted this earlier in the classical physics section, but i think i may have hit a wall over there. I'm thinking engineers might be better suited to this problem. basically, I'm trying to figure out how to fire a blank round in a 76mm gun and make it recoil like it does when i...

For a high school Physics project, I am supposed to create an electromagnetic device (like a generator, a motor, a Magnetohydrodynamic boat, etc.) I was thinking about building a Gauss gun, but was wondering if I could replace the individual magnets with electromagnets. I have a bunch of 1/2"...

Homework Statement An astronaut (mass mA) in space, tied to the end of a tether of length 10m, is traveling in a circle with constant speed making one revolution every 15seconds. a) Assume that the astronaut fires a spring loaded gun (containing a ball) towards the center of the circle and...

this isn't a homework problem - and i am not a student! i have a 76mm tank gun (it's legal and registered w/ the feds in case you are wondering) and i am interested in firing blanks - but here is the problem: i want the gun to recoil like it does when firing live rounds. here is how the...

Homework Statement In a spring gun, a spring of mass 0.244kg and force constant 3500N/m is compressed 2.00cm from its unstretched length. When the trigger is pulled, the spring pushes horizontally on a 4.1×10−2kg ball. The work done by friction is negligible. (a) Calculate the ball's...

question(s): These are questions from an exam i took earlier tonight, but do not know if i got them correct. 1) Rain is falling with velocity 30 m/s at an angle of 60° from the vertical and is blowing due east. If a passenger inside of a train (also traveling due east) observes the rain...

1. A pellet gun fires ten 2.0 g pellets per second with a speed of 500 m/s. The pellets are stopped by a rigid wall. What are (a) the magnitude of the momentum of each pellet, (b) the kinetic energy of each pellet, and (c) the magnitude of the average force on the wall from the stream of...

I am having a problem with this question. I have it half solved but I cannot figure out what equation I am supposed to use for the rest. Homework Statement A hunter shoots his rifle at an angle of 27.2 degree above the horizontal. He is holding the rifle so that the muzzle of the rifle is...

Homework Statement A cork gun contains a spring whose spring constant is 10 N/m. The spring constant is compressed 5 cm and then used to propel a 6 gram cork. The cork, however, sticks to the spring for 1 cm beyond its unstretched length before separation occurs. What is the muzzle velocity of...

Homework Statement A toy gun fires marbles with a velocity v = 7m/s a) to hit a toy soldier that is 1.8 m away and 1.1 m higher than the gun, at what angle should the gun be aimed? b) Now assume that the toy soldier is dropped ( starting from rest) the instant the gun is fired. If the...

Homework Statement A gun is aimed directly at a can, which is simultaneously released when the gun is fired. This gun won't miss as long as the initial speed of the bullet is sufficient to reach the falling target before the target hits the floor. Verify this statement. Homework...

Gun is a kind of heat engine? if so ,the efficiency of a gun is limited by carnot heat engine?

Homework Statement I have given a cathode and a anode being -1000V and 1000V each respectivily I know the distance between the cathode and anode its 3mm What I have to do now is calculate the electric field between the cathode and anode and use that to find the acceleration of an electron...

Homework Statement spring-loaded gun on tabletop. Target box 2.20m horizontally from edge of table on floor. Shot 1 - spring compressed 1.10 cm - falls 27 cm short. How far should the spring be compressed to hit the target with shot 2? Homework Equations GPE1 + SPE1 + KE1 = GPE2 +...

Is this the Real America stocking up on firepower? http://www.adn.com/politics/v-gallery/story/585071.html?/1521/gallery/585072-a585070-t3.html

Machine Gun Momentum Question [Please help!] Homework Statement A machine gun is attached at one end of a 10m long stationary flatcar and fires towards the other end. Determine the average recoil fore on the gun if it fires 240 rounds/min, the mass of the bullets is 25g and the muzzle...

Boy, 8, shoots himself to death at Mass. gun show http://news.yahoo.com/s/ap/20081028/ap_on_re_us/boy_shoots_himself

Gun Shoots Block Up Incline! 1. A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an amount x. The spring has spring constant . The incline makes an angle (theta) with the horizontal and the coefficient of kinetic friction...

Homework Statement The spring of a spring gun has force constant k = 400 and negligible mass. The spring is compressed 6.00 and a ball with mass 0.0300 is placed in the horizontal barrel against the compressed spring. The spring is then released, and the ball is propelled out the barrel of...

Bored, a boy shoots his pellet gun at a piece of cheese that sits, keeping cool for dinner guests, on a massive block of ice. On one particular shot, his 1.1 g pellet gets stuck in the cheese, causing it to slide 25 cm before coming to a stop. If the muzzle velocity of the gun is 76 m/s and the...

I am having a problem with a question from my calc 3 class. I don't think there is any calculus involved, however. So the problem goes like this "A shot is fired from a gun with a muzzle velocity of 1200 ft/s is to hit a target 3000 ft away. Determine the minimum angle of elevation of the gun...

[b]1. A projectile is fired from a gun (on the ground)and has initial horizontal and vertical components of velocity equal to 30 m/s and 40 m/s, respectively.a) How long does it take the projectile to reach the highest point on the trajectory? b) What is the magnitude of the projectile's...

A hunter aims directly at a target (on the same level) 140 m away. a. if the bullet leaves the gun at a speed of 240m/s, by how much will it miss the target? b. At what angle should the gun be aimed to hit the target? could someone please help us figure out which equations to use to...

Homework Statement A gun is fired straight up. Assume a quadratic drag force. Show (upward motion) v^2 = Ae^{-2kx} - \frac{g}{k} (downward motion) v^2 = g/k - Be^{2kx} Homework Equations The Attempt at a Solution I can easily solve the integrals unfortunately I am having difficulty setting...

Just for those who may be unaware, the Supreme Court ruled that the 2nd Amendment is an individual right. What's interesting is it was 5-4 ruling.

Homework Statement A gun that is fired "recoils". Explain using one of Newton's laws. Homework Equations ?? The Attempt at a Solution Newton's second law?? F=M/A

Gun T-Shirt was a "security risk" Words fail me... http://news.bbc.co.uk/2/hi/uk_news/england/london/7431640.stm

Homework Statement A bullet is fired horizontally from a height of 4 meters, misses its target, and travels 98.5 meters before striking the ground. Use the above equations to determine the initial muzzle velocity of the gun. Homework Equations Solve for time Horizontal velocity...

Homework Statement A rifle is held rigidly by a supporting test frame. When fired horizontallly, a 50 g bullet attains a muzzle exit velocity of 500 m/s if it takes 0.003 s for the bullet to travel the length of the barrel, determine the average horizontal force applied to the gun by the test...

I was reading the Wikipedia page on Pareto distribution, part of the WikiProject Statistics. http://en.wikipedia.org/wiki/Pareto_distribution Economist Vilfredo Pareto in about 1906 developed the Pareto principle [80-20] later expanded to Pareto distribution, a probability density function...

I put in the dehumidifier inside a remington thing you charge up with power up. Would you think having a fan blowing on the outside of a locked safe would have any effect on keeping the guns dry?

(1)It takes a force of 75 N to compress the spring of a toy popgun 0.18 m to "load" a 0.14 kg ball. With what speed will the ball leave the gun? I used the equation F=kx I solved for K and I got 416 N/m Then I used the equation omega = square root(K/M) I solved for omega and i got 54.5...

Does Bernoulli's principle come into play, regarding the fact that a bullet my travel hundreds of yards and drop very little? Or is gravity pulling the bullet down at the same rate it would any other object, and it's just that the bullet is in the air for only a fraction of a second?

Homework Statement A gun of mass 500Kg fires a shell of mass 2Kg with a muzzle velocity of 500m/s. Calculate: i) the velocity of recoil of the gun ii) the force required to stop the gun in a distance of 0.25m Homework Equations The Attempt at a Solution i)I got the velocity of...

Homework Statement A ball of mass m = 56 g is shot with speed vi = 20 m/s (in the negative direction of an x axis) into the barrel of a spring gun of mass M = 222 g initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring...

Homework Statement A spring gun (k = 28 N/m) is used to shoot a 56-g ball horizontally. Initially the spring is compressed by 18 cm. The ball loses contact with the spring and leaves the gun when the spring is still compressed by 12 cm. What is the speed of the ball when it hits the ground...

Homework Statement The largest-caliber antiaircraft gun operated by the German air force during World War II was the 12.8 cm Flak 40. Suppose this weapon fired a 24.4 kg shell with a muzzle speed of 910 m/s. What propulsive force was necessary to attain the muzzle speed within the 6.00 m...

Jeez I hope I never get you mad at me. How did you discover antigravity anyway?? http://www.americanantigravity.com/articles/572/1/The-EVO-Gun/Page1.html

Hey there! I found this website and I was hoping to get some info from some smart folks with experience and extensive knowledge. Okay, from the title, I know it seems like a stretch but I just have to know. Physically speaking, is there a way to stop the gun? By stop I mean robbing it of its...

Hi all, I want to know in detail about gun, especially the properties of gas with hight pressure like in gun's barrel. Could you give me some free useful things? Or just answer me some question: 1 When firing, from the beginning of the explosion until the bullet leaves the barrel, how...

1. A ball of mass m is projected with speed vi into a barrell of a spring gun of mass M initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. no energy is lost in friction. a) What is the speed of the spring gun after the...

Homework Statement The spring constant of a experimental spring gun is 350N/m. The spring is compresed a distance of 80cm from it's equillibrium position and a 1.5kg musket ball is placed in the barrel against the compressed spring. When the gun is fired the spring extends the length of the...

Homework Statement A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=6.7N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position y=0 and then released, the ball reaches a maximum...

Homework Statement A spring-loaded toy dart gun fires darts with a mass of 104 g. When the spring in the dart gun is compressed 8 cm, the dart flies off with a speed of 11.4 m/s. What is the spring constant of the spring in the dart gun?Homework Equations W=1/2*k*x^2 V=sqrt(2W/m) The Attempt...