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A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 18.0cm , giving it a charge of -12.0?C.
Find the electric field just inside the paint layer in N/C
Find the electric field just outside the paint layer in N/C
Find the electric field 9cm outside the surface of the paint layer in N/C. Express in three significant figures.
A hydrogen atom at rest in the laboratory emits the Paschen ? radiation. Compute the recoil kinetic energy of the atom
Initially, an object is 12cm to the left of a convex lens of focal length 8.2cm, then a concave (diverging) lens of local length -9cm is placed 20cm to the right of the convex lens, find the Image distance from concave lens
Two protons are located on the x-axis at 1.0m and on the y-axis at 1.5m. Determine the electric potential energy of a third proton located at the origin
A small but measurable current of 8.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm. calculate the current density and electron drift speed
Sunlight, with an intensity of 681 W/m2, strikes a flat collecting surface perpendicularly and is totally absorbed. What is the force in micronewtons that acts on the surface
The lenses of a particular set of binoculars have a coating with index of refraction n = 1.38, and the glass itself has n = 1.52. what is the minimum thickness of the coating
A thin double convex lens is to focus the image of an object onto a screen so that the image is life-sized. What is the total distance L between object and image
In an R-L-C series circuit the magnitude of the phase angle is 52.9? with the source voltage lagging the current. The reactance of the capacitor is 360? , Find the reactance of the inductor
A mass of 210 g oscillates on a horizontal frictionless surface at a frequency of 4.0 Hz, What is the effective spring constant for this motion
A 1100kg car traveling south at 24 m/s with respect to the ground collides with and attaches to a 2550kg delivery truck traveling east at 16 m/s. Determine the direction of the velocity of the two vehicles
A ball with mass 750 g is dropped from a height of 1.25 m. hat is the magnitude and direction of the impulse from the floor that makes the ball bounce
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 24°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
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