Sunlight focused on the paper and the paper ignites
A convex lens is held over a piece of paper outdoors on a sunny day. When the paper is held 21 below the lens, the sunlight is focused on the paper and the paper ignites.
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What is the difference between steady state and non steady state diffusion procces? Use mathematical expresions for the steady state diffusion derive the expression for the non-steady state case.
Two circular coils carry the same current, but one coil has twice the diameter of the other one. If the larger coil produces a magnetic field B at its center, what is the magnetic field that the smaller coil produces at its center?
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Question: Which of the following statistics is true regarding adolescents? A. 1 million people each year get STDs. B. Half of STD infections are among people
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