Calculate the energy density in the electric field
A charged isolated metal sphere of diameter 11 cm has a potential of 9000 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere.
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At t = 0 the coordinates of a particle are x = 0, y = 2.02 m. At a time 0.90 s later, its coordinates are x = 3.06 m, y = 4.08 m. Find the components of the particle's average velocity during this time interval.
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A force is applied to a 1kg mass and produces 5.5 m/s/s acceleration. What acceleration would be produced by the same force applied to a 6.6kg mass?
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The paper dielectric in a paper-and-foil capacitor is 8.00×10-2 {rm mm} thick. Its dielectric constant is 2.50, and its dielectric strength is 50.0 {rm MV}/{rm m}. Assume that the geometry is that of a parallel-plate capacitor, with the meta
A barge has vertical sides and a flat bottom of 320ft^2 area. when partially filled, the barge is immersed in fresh water to a depth of 2.00 ft. upon removal of the load the barge rises 16.0 in. (a) what is the approximate weight of the barge? (b)
Neglecting fringing, find (a) the potential difference (in V) between the plates, (b) the initial stored energy, (c) the final stored energy, and (d) the work required to separate the plates.
Suppose you discover a Type Ia supernova in a distant galaxy. At maximum brilliance, the supernova reaches an apparent magnitude of +10. How far away is the galaxy?
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