A delay in a rifle bullet can be caused by a number of factors, including the design of the firearm, the type of ammunition used, and environmental conditions. For example, a misaligned barrel or a malfunctioning firing mechanism can cause a delay in the bullet being fired. Additionally, using ammunition with a slow burning powder or firing in extreme cold weather can also contribute to a delay in the bullet's propulsion. Overall, any factor that disrupts the smooth and efficient transfer of energy from the firearm to the bullet can result in a delay. **

The speed of a rifle bullet from a sports rifle can vary depending on the specific type of rifle and ammunition being used. However, in general, the speed of a rifle bullet from a sports rifle can range from around 2,000 feet per second (fps) to over 3,000 fps. This high velocity allows the bullet to travel long distances and deliver significant kinetic energy upon impact. It is important for shooters to be aware of the specific speed and characteristics of the ammunition they are using in order to ensure safe and accurate shooting. **

The angle of a rifle bullet can be determined using trigonometry and the principles of projectile motion. By measuring the horizontal distance the bullet travels and the vertical distance it drops, the angle of elevation can be calculated using the equation tan(theta) = (vertical distance)/(horizontal distance). Alternatively, if the initial velocity of the bullet and the time of flight are known, the angle can be calculated using the equation sin(theta) = (vertical distance)/(initial velocity * time of flight) - (1/2 * g * time of flight^2), where g is the acceleration due to gravity. **

The mass of a horizontal rifle bullet is 2g. When a bullet is fired from a rifle, it travels at high speeds due to the force generated by the gunpowder explosion. The mass of the bullet remains constant regardless of its horizontal or vertical motion. Therefore, the mass of the bullet is 2g whether it is moving horizontally or not. **

A suitable material for an air rifle target backdrop is one that is durable, able to withstand the impact of the pellets, and provides a good contrast for visibility. Heavy-duty paper or cardboard are commonly used as they are affordable and easy to replace. Additionally, some shooters use specialized target backdrops made of rubber or steel for added durability and longevity. Ultimately, the chosen material should be able to safely capture and contain the pellets while providing a clear and visible target for the shooter. **

Yes, it is possible for someone to be killed by a bullet shot into the sky with a rifle or a pistol that comes back down and hits them. When a bullet is shot into the sky, it will eventually lose its upward momentum and start falling back down due to gravity. If the bullet falls at a high enough velocity, it can cause serious injury or even death upon impact with a person. This is why it is extremely dangerous and illegal to shoot firearms into the air in populated areas. **

Yes, it is possible to stop a cartridge, rifle bullet, etc. with a strong magnet. A strong enough magnetic field can exert a force on the metal projectile, slowing it down and eventually stopping it. However, the strength of the magnet and the speed and size of the projectile will all play a role in determining whether the magnet can effectively stop the projectile. It's important to note that attempting to stop a bullet with a magnet can be extremely dangerous and should not be attempted without proper training and safety precautions. **

Tanks do not target automatically. They require human input to identify and engage targets. Tank operators use various sensors and targeting systems to locate and track potential threats, and then they manually aim and fire the tank's weapons. While some modern tanks may have advanced targeting and fire control systems, the decision to engage a target is ultimately made by the tank crew. **