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A surface completely surrounds a +3.9 10-6 C charge. Find the electric flux through this surface when the surface is a sphere with a radius of 0.30 m, a sphere with a radius of 0.15 m, and a cube with edges that are 0.15 m long.
(a) a sphere with a radius of 0.30 m N ·
(b) a sphere with a radius of 0.15 m N ·
(c) a cube with edges that are 0.15 m long N ·
question the note middle c on a piano has a frequency of 512 hz in the fundamental tone. suppose that the string that
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Green light (? = 546 nm) strikes a single slit at normal incidence. What width slit will produce a central maximum that is 1.70 cm wide on a screen 1.18 m from the slit
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