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Can anyone please help e with this question.?

This is a question taken from edexcel AS2 physics unit 6B paperHere is the question.(b) An aluminium cooking foil manufacturer states that the thickness of the foil is 15 μm.You have a micrometer which can read to a precision of 0.01 mm.(i) Describe how you would try to find an accurate value for the thickness of a sheetof the foil.(ii) Estimate the percentage uncertainty of your value.

Answer:

hey thereI am assuming this is for the paper 2mrw) b) fold the aluminium foil three times which brings the number of layers to 8Use the micrometer screw gauge to find the thickness of 8 sheets of foilii) since you used the micrometer screw gauge to find the thickness of 8 sheets, the uncertainty for this whole value (lets call it T) is 0.01mmTherefore the percentage uncertainty of T is 0.01/(T) x 100since tT/8, %T%tSo the value calculated for percentage uncertainty of T is the same as that for tHope that helpedGood luck for 2mrw need to go do a bit of studying myself )
You obtained all wrong informationsConducting electricity has no relation with magneticAny metal can be used to pass electricityElectrons flow from negative towards positiveAircraft wiring never use aluminum wireAircraft body mainly is made of aluminumAluminum wiring for some old houses have fire hazardIt has been abandoned long long time ago.
Honestly, I think this is a very realistic goal for improving air quality and suplying energyYou wouldn't want to use it as a road surface, as deposits from tire treads would degrade its productivity, but such a system could easily be constructed alongside roadways and rail systemsPanels would not have to be as wide as a roadway, as you have virtually unlimited linear spaceHowever, I don't think it will make a difference in global climate changeThe primary driving force for global warming is not man-made polution, but natural phenomena such as volcanic eruptionsPeople probably have SOME effect, but its a bit like the whole tea-cup-in-the-swimming-pool thingThere's nothing that can be done about global warmingRemember that the earth's climate is in a constant cycle from cold to hot, and back to coldI'm sure you've heard of ice ages.

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