a disposable camera, a rechargeable battery, recycling aluminum cans, or none of these
first, how would you even test the tempof the bulletwhen a bullet is fired into water it disintegrates into shrapnel and there probably wouldnt be any water left to test either.
Ke 1/2 mv squared Put your numbers in to get the Kinetic energyThe bullet would give up its energy to the waterA rough answer would then be that energy divided by the specific heat capacity for 10 litres of waterHowever even 40grams of alumimiun would soak up some of that energy so a more accurate answer would also require averaging out the alumimiums shc and the mass of bullet and water.
Possibly a disposable cameraThe battery is rechargeable so you can reuse it, the cans are recyclableIt depends on what the camera is made ofIt is made of plastic, which is often recyclable, but there is also other stuff inside of it that makes it work, which may or may not be recyclable,but I think that it is not because there is not a recycle sign on the packaging(on the ones i'v had)But on the bright side, the packaging is recyclable! :)
