I suppose that the causes are the high energy, density and speed.
what helps the metal bullet go thoughft the foils
It depends on the hardness of the bullet's nose, the distance travelled, and the thickness of the metal sheet.
I'm not absolutely sure, but I'm confident a metal jacketed 38 special bullet will go through a human head at 300 ft.
Yes, several layers of drywall in fact if the bullet is FMJ ( full metal jacketed). Hollow points have less penetration in drywall and anything else for that matter.
No- but a CARTRIDGE can. The bullet is the solid metal part of a cartridge that comes out of the end of the barrel. Being solid metal, there is no part of it that is flammable or explosive. A CARTRIDGE is an entire. loaded round of ammunition (Cartridge case, primer, powder, and bullet) If those are in a fire and get hot enough, they will explode. However, when not confined in a gun barrel, the energy is not directed, and pieces of the case or bullet will usually only travel a few feet.
Actually, it foils around it, giving 'pull' on the downwind side of the sail.
Depending on the bullet, 9mm goes slower than it, but a 45-50cal.
No, not even a rare earth magnet could deter the path of a high velocity bullet. If the bullet hits the magnet then in would go in to a depth depending on caliber and range then stop just like if it hit any metal. Most bullets are made of lead and copper, and are not affected by magnets.
It's quite likely, considering most 7.62mm cartridges are made to penetrate light armour (body armour and sheet metal).
Yes it can. Bullets may glance off the hood because the hood is sloped with respect to the flight path of the bullet, causing it to glance off instead of going through it. Same with the windshield; a bullet can go through it or bounce off.
rilly fast
No