is air gun a kinetic energy?
445418
No. It has potential energy. When you pull the trigger the potential energy is converted in to kinetic energy that does the intended work.
103558
Kinetic energy is almost never conserved. There is friction, and conversion of kinetic energy to potential energy, for example.\n\nI think you are referring to conservation of energy, not kinetic energy. The law of conservation of energy is allowed to be violated but only for very short periods of time, by the Heisenberg Uncertainty Principle.
205512
Yes, it is theoretically possible.\n\nThey key words here are "REALLY powerful gun", and "REALLY high peak".  You learn to look for these types of words when reading physics problems, the word usage is very important in conveying which things to neglect and which to focus on.  In this case, we focus on whether it is possible or not, not in how high the peak is or how powerful the gun since we are told it is "really" powerful and "really" high.
770931
yes the kinetic velocity is incresed....due to the phase change...this is why we give energy for the liquid to vapourise to increase the energy of each molecule and seperate them ...for the motion to be faster
538402
No because of Kinetic energy.\n\nLesson 1: Basic Terminology and Concepts\nKinetic Energy\nKinetic energy is the energy of motion. An object which has motion - whether it be vertical or horizontal motion - has kinetic energy. There are many forms of kinetic energy - vibrational (the energy due to vibrational motion), rotational (the energy due to rotational motion), and translational (the energy due to motion from one location to another). To keep matters simple, we will focus upon translational kinetic energy. The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) which an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent the kinetic energy (KE) of an object.
276284
The answer to that question depends on many factors.  However the military practices this phenom daily.  each element has a combustion point.  Freashman Physics does not delve into the properties of air friction as it relates to projectile motion.   \n\nnow for the basic answer.  I will leave the details for you to research.  Understanding science is much superior to being given a fish.\n\nTracer rounds in in military machine gunds are composed of standard bullets whose tips are coated with Phosphorous.  the are inserted every fourth round but when fired the velocity of round, its surface area, and the friction due to  air cause a net resultant heat that surpasses the combustion pint of Phosphorus.  My spelling sucks but hopefully my theory is sound.
200339
Conservation of momentum.  Newton tells us that for every action, there is an equal and opposite reaction, such that in a collision, the net momentum remains the same.  When you realese gas backwards, the momentum imparted on the gas away from the space craft needs to be ofset by imparting momentum upon the astronaut in the direction of the space craft.\n\nWhen you fire a gun, the momentum of the bullet forward is equal to the momentum of he gun backward.  Since the gun is much bigger than the bullet, it doen't move as fast, and the force is spread over a larger asrea (your hands and shoulder).  But the kick backwards is the same sort of principle: the equal and opposite reaction.
253836
Kinetic energy is energy that a body possesses as a result of its motion. In simple cases, it can be expressed mathematically as half an object's mass multiplied by its speed squared.\n\nThe etymology of kinetic energy is the Greek word for motion kinesis and the Greek word for active work energeia. Therefore the term 'kinetic energy' means through motion do active work. The terms kinetic energy and work and their present scientific meanings date back to the mid 19th century. Early understandings of these ideas can be attributed to Gaspard-Gustave Coriolis who in 1829 published the paper titled Du Calcul de l'effet des machines outlining the mathematics of kinetic energy.\n\nIt is formally defined as work needed to accelerate a body from rest to a speed v. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. Negative work of the same magnitude would be required to return the body to a state of rest from that speed.\n\n\nPotential energy is stored energy. The energy is stored by doing work against a force such as gravity, a spring in a clockwork motor, or even an electromagnetic field.
34585
The equations of motion you are using are good equations, but aren't going to answer your question.  What you want to know is the energy of the moving object.  \n\nThe kinetic energy of a moving object is E = (1/2)m*v^2.  From this equation you can see that if you double the velocity, the energy quadruples.  Stopping an object with four times the kinetic energy will take 4 times the distance.
284573
good link below\n\nhttp://en.wikipedia.org/wiki/Kinetic_theory
419731
yes:\n\nThe first answer is in the right direction.\n\nA reaction engine is one that moves in a direction opposite to the thrust of combustion.\n\nA reaction engine works on the basis of Newton's third law of motion: \n\n"For every action there is an equal and opposite reaction."\n\nIn a reaction engine fuels are burnt and the extra pressure due to formation of more volume of gases is directed to get out of a nozzle. This forms "action"\n\nAs a result of action the engine or the body containing the system moves in opposite direction.\n\nRockets and Jet Planes are the examples of reaction engine.\n\nThe movement of a balloon as a result of escaping gas from an opening is one very simple example.
759307
here we go  kinetic energy at point of shot equals potencial energy at top of the squirt\n\n1/2 m v^2 = mgh\n\nm's cancel  (Rained in seattle)\n\nv = Square root (2gh)\n\ncheck my algebra... Note, you must change cm to meters before you can answer
1157115
No, it falls back down at its terminal velocity(maybe), which is slower than the muzzle velocity because of drag.\n\nThe bullet leaves the gun with a given amount of kinetic energy: 1/2*m*v^2 where m is the mass of the bullet and v is its initial velocity.\n\nAir has non-zero viscosity, which is a resistance to shear forces.  When the bullet flies through the air, it drags air along with it.  This gives some of the bullet's energy surrounding air, reducing the bullet's velocity and kinitic energy.  Drag forces between fluids and solids occur in the direction opposite their relative motion.  (If the fluid is stationary and the bullet is moving, the drag is in the opposite direction of the bullet's motion.  If the fluid is moving and the object is stationary, the drag on the solid is in the direction of the fluid motion.)\n\nSimultaneously with drag, gravity is applying a force toward earth.  This too reduces the bullet's velocity and kinetic energy.  However, as the bullet flies higher into the air it gains an equal amount of potential energy from gravity.\n\nThe net result is that the bullet is always losing energy in flight because of drag.  This means that the amount of potential energy at the top is less than the initial kinetic energy, and it is thus impossible for the bullet to be going at the same speed it was shot when it hits the ground.\n\nThe fastest an object will fall under the influence of gravity is the terminal velocity.  At this velocity, the force of drag (which increases with the size of the object's profile, the viscosity and density of the fluid, and the relative velocity of the solid and the fluid) exactly balances the gravitational force.
947575
It is possible for an object to be falling fast enough for the force of air resistance to exceed the force of weight and for the object to accelerate upwards until it slows to a speed at which the force of gravity equals the air resistance and the net force equals zero.\nHowever, this will not happen on its own.  You cannot drop an object from a tall building and expect to see it accelerate up and down as it falls.  As the object accelerates downward, its velocity increases, causing the force of air resistance to increase (meanwhile weight stays constant).  The object will approach an equilibrium point at which the air resistance equals the weight and the new force equals zero (speed at this point is called its "terminal velocity").  At this point, the object stops accelerating and travels at a constant velocity until the equilibrium is disturbed.  The object cannot cross this equilibrium point on its own...but for example, if you shot a bullet straight down out of a gun, the bullet might exit the gun barrel at a speed such that the drag force is greater than the weight, and the bullet slows down as it falls, approaching the equilibrium point.
1122949
Kinetic Energy (KE) is calculated as,\nKE = 1/2 m*v^2\nwhere m is the object's mass, and v is the object's velocity.\n\nIt is assumed that the velocity (and thus KE) is calculated with respect to one's own reference frame as there are no absolute velocities in the universe.\nThus, a moving object does contain KE.\n\nThere are many types of Potential Energy.  There is gravitational PE, Electrical PE, Chemical PE, Elastic PE, ....\nSo it is very likely for an object to posses at least one type of PE, but at the same time, it is not required (at least in theory).\nPotential Energy is measured with respect to some kind of "Ground" or base on which the object has Potential over...if the object theoretically were the base, it would have zero potential.\nI would not go so far to make the statement that every stationary object has Potential Energy, but if you looked hard enough and considered various types of PE, you might be able to find something in most cases.
630283
Potential & Kinetic are the 2 types of energy. Potential energy is energy that is stored in an object. If you stretch a rubber band, you will give it potential energy. As the rubber band is released, potential energy is changed to motion. Kinetic energy is energy of motion. A rubber band flying through the air has kinetic energy. When you are walking or running your body is exhibiting kinetic energy. Potential energy is converted into kinetic energy.
1054528
The AVERAGE kinetic energy of the atoms/molecules an object is composed of.