No, the bullets have no effect on artillery and tanks.
Artillery rounds have a curved trajectory.
The inside of an artillery shell is filled with high explosives. At the tip of the shell there is a fuse. When the fuse hits a solid surface it ignites the main charge, causing the shell to explode.
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yes they now use a m6 abrams with six airoplane motors to fire rounds of eoir (explode on impact rounds)
Chlorine doesn't explode when mixed with water. Pool water has chlorine in it. I think you meant sodium mixed with water, which does explode.
No, your kidneys can't explode if you drink nothing but water.
Only if they are celebrating 4th of July (Independence day) so yes, they can be used for fun. There are even pieces of music that include places for artillery rounds to be fired, the most famous is the 1812 Overture.
Your question is a bit ambiguous, but let's see what we can do. First, not many guns will fire effectively under water, and attempting to do so could be dangerous. Since water does not compress, if the barrel fills with water, it could fracture or explode. And, because water is a heavier medium than air, if you were able to fire a gun submerged, the distance of travel for the bullet will be significantly less. Second, recognizing the possibility that you might be looking for the penetration potential of a bullet fired into water and the result to the round, consider again the density of water. Bullets fired into water do not penetrate well, typically not further than a couple feet. Larger rounds such as .50 cal, .44, .45, and 7.62 mm tend to fracture upon contact, and all rounds dump their ability to penetrate much past a foot or two depth. Finally, bullets do not "explode." Hollow points and soft tips tend to mushroom. These and smaller caliber rounds can fragment, especially if they hit a solid object. Teflon or ballistic tipped ammunition tend to slip through or tumble. Even crosshatched rounds such as Black Talon bullets don't explode; such are engineered to fracture in an even pattern so to cause dramatic soft tissue damage.
Artillery was the primary counter-trench warfare weapon because the only way to really be assured of killing guys in a trench is to use a weapon whose projectiles travel in an arc. The Germans had an interesting tactic: they set mortar bombs for impact burst (which means they explode when they hit, not before) and tried to drop them into the Allied trenches. It didn't succeed often because mortars are famously inaccurate, but when it did it killed a lot of people. The Allies, who were mostly using French guns, would set their rounds to explode over the trenches. Since overhead cover hadn't been invented yet, this was more successful.
no
Most simply put, it is where an artillery unit has aimed their weapons at a specific area in anticipation of the enemy travelling through it. When the enemy passes through that area, the order is given to fire, and all rounds converge on that spot.