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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This cycle is operated at 80 kPa and 20oC at the beginning of the compression step. Assume constant properties evaluated at 300 K. Determine the following the maximum pressure of the cycle.
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In what direction and at what speed does the wreckage move (a)if one car was driving north and one south? (b) if one car was driving north and one east
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