It's unlikely, but possible. A bullet fired through the skin of the plane (through aluminum) will make a small hole, which will cause a pressure leak. The cabin pressure system can compensate for several such leaks. If a bullet is fired through a window, the window might blow out, causing the cabin to lose pressure fairly quickly--the cabin pressure system can't compensate for a hole that big. While that is hazardous to the passengers, it won't bring down the plane. (Although, the pilots will immediately dive to a lower altitude to recover some cabin pressure). A bullet that punctures a fuel tank or fuel line might lead to a fire which would bring down the plane.
Bullets spin when fired from a gun due to the rifling inside the barrel. Rifling consists of grooves that twist around the inside of the barrel, causing the bullet to spin as it travels down the barrel. This spinning motion stabilizes the bullet's flight and improves accuracy.
That would depend on the mass of the bullet, the bullet's velocity when it left the barrel of the gun, and from how high up the bullet was fired from.
As a bullet moves down the barrel of a firearm, it gets propelled by expanding gases from the ignited gunpowder. The rifling inside the barrel causes the bullet to spin, improving its accuracy by stabilizing its flight. The bullet gains speed and energy as it accelerates down the barrel before exiting the muzzle.
The speed of a bullet coming down, when fired vertically upwards and then falling back under the influence of gravity, will be the same as its speed when it was initially fired upwards. This is because gravity affects both the upward and downward trajectories equally, assuming no other forces are involved. The speed will depend on the initial velocity of the bullet when fired.
When a bullet is fired from a 9mm handgun, the temperature of the bullet can reach several hundred degrees Celsius due to the friction and compression generated from the explosion in the chamber and the acceleration down the barrel.
The time it takes for a bullet fired into the air to come back down depends on the bullet's initial velocity, weight, and aerodynamic properties. In general, it can take anywhere from 30 seconds to over a minute for a bullet to fall back to the ground. However, firing a bullet into the air is extremely dangerous and can cause harm or even death when it falls back down.
He was shot down by a bullet in his heart, apparently fired by a rifle on the ground.
Smooth-bore is like a tube, think of it as a straight pipe. Rifling is a pipe with grooves swirling around on the inside of the pipe. This makes the bullet spin as it travels down and leaves the barrel. This spinning makes the bullet fly straighter than a bullet fired from a smooth-boar barrel.
Yes, a bullet fired straight up in the air can be lethal when it falls back down to the ground. The force of gravity causes the bullet to accelerate as it falls, potentially reaching a lethal velocity. This phenomenon is known as a "stray bullet" injury.
Bullets rotate due to the grooves that run down the inside of the barrel walls in a "helical" shape - this is known as "rifling". The grooves make contact with the bullet as it it fired down the barrel and cause it to spin. This improves its aerodynamic stability and accuracy.
Stupidity.
The velocity of a bullet coming down from altitude is the terminal velocity of the bullet fired. Since not all bullets are equal in mass, it would depend on the grain (weight) of the bullet fired, the caliber of the bullet, and the charge behind the bullet (which would determine the highest possible altitude it could reach). To determine the terminal velocity of any bullet, you must first know these variables and plug in those variables to the equation below: That is, * Vt = terminal velocity * m= mass of the bullet * g = gravitational acceleration * Cd = drag coefficient (wind resistance applied to the bullet as it falls) * ? = denisty of the medium through which the bullet is falling (the atmosphere) * A = projected area of the bullet (which can get complicated due to the shape of the ball). Essentially, the following is true: any bullet fired straight upward is not only potentially but very likely as deadly to anyone it might strike when it lands as if that same bullet were fired directly at that person.