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Question:

Given density, find the thickness of the foil?

The density of aluminum is 2.70 g/cm3A square piece is 21.89cm and weighs 2.514 gThe answer should be in millimetersI got 1.9 x10^-2 and im wrong, but I dont know whyI keep getting the same answerPlease helpThanks

Answer:

out of 1250 rounds, 3 problems is not bad on the range during initial break in periodsCrappy ammo like wolf made my glock stove pipe when I used it, so i switched to better ammo and had no problemsGive your glock another good cleaning, and you should be good to go.
What ammo are you shooting? If it's low grade stuff, I would think that is your problemIve put about 600 through my Glock with 0 problems.
Theres many reasons why this gun wont fire1could be from the ammo used2 could be not cleaned 100% and 3could of just been something strange maybe a defect with the gun
Glocks are some of the most reliable firearms out thereBut it is a man made object so, though it is a quality firearm and machined well, defects will show up from time to timeI would contact Glock if you have anymore problemsNow, other then a screw up in the gun parts itself, these are some of the problems I have seen that may be leading to your problem: 1Limp wristing itI.E., you aren't holding the firearm in a firm grip with your wrist strong and straightYou may be giving too much slack in the gun, try holding it tighterIf you limp wrist with a smaller caliber like a 9mm (not saying its a bad caliber just smaller then most service weapons that I'm used to) it can cause some of the energy from the recoil spring to be dicipated and thus not go forward and seat correctly if you had a firmer gripPlease understand I have no idea how much experience you have shooting handguns and I mean no disrespect nor am I assuming your a novice2If the ammo you use is cheap that could very likely be the reasonCheap ammo is just that and to have only a couple of problems out of that many shots is actually pretty good, even with crap ammoTry different ammo for a while and see if it helps3The magazine could also be a problemIf it doesn't seat correctly or the springs are faulty somehow they could feed incorrectlyIf it isn't an actual factory magazine that may also be a problem4The slide springIf the slide spring is some how faulty it could do the same things as limp wristingTry a new slide spring and if that doesn't help then hey you atleast have a spare part to change out later in the futureIncidently, I have shot Glocks for ever and the slide has always automatically released, even with a brand new weaponIts just something that seems to happen with some peopleAnnoying though isn't it? Those are the main problems I have seen throughout my career.
2.514g x (1cm? / 2.70g) x (1 / 21.89cm)? x (10mm / 1cm) 1.94x10^-2mm enter 2.514 / 2.70 / 21.89? x 10 in your calculator and round to 3 sig figs try it with 3 sig figs

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