Charge per unit area on the plastic sheet
A 10.0 g of Styrofoam carries a net charge of -0.700 uC and floats above the center of a large horizontal sheet of plastic that has a uniform charge density on its surface. What is the charge per unit area on the plastic sheet.
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Determine the ray-transfer matrix for an optical system made of a thin convex lens of focal length f and a thin concave lens of focal length -f separated by a distance f. Discuss the imaging properties of this composite lens.
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The job cost sheet is used to accumulate the three product costs: direct material, direct labor, and factory overhead.
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