Considering the specific heat of aluminum is 0.21, iron is 0.10, and lead is 0.03, which metal will show the largest increase in temperature per calorie added to onegram of that metal?

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Explain how spectral lines show discrete energy levels in an atom. : quantum physics

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What is the law of machines?

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What are isotopes?

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Explain how does the elevation and air pressure affect the boiling point of water?

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What is Relative humidity ?

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Why is battery used in a motor car ?

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Explain the branches of physics?

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Explain the Heat Vaporisation?

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I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.

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Explain what is the opaque?

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What secondary color of light is produced by mixing the primary colors of red and blue?

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