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In: Mechanical Engineering

heat transfer question, show equations, assumptions, calculations and steps clearly. will give thumbs up rating if...

heat transfer question, show equations, assumptions, calculations and steps clearly. will give thumbs up rating if solved correctly in 30 minutes

part a:

One of your hands is in still air at room temperature while the other one is in still water also at room temperature. Which hand will feel colder and why?

part b:

Why does sunscreen lotion prevent you from getting sunburn, but not from feeling the heat from the sun?

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