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A charge of 8.0 pC is distributed uniformly on a spherical surface (radius = 2.0cm), and a second charge of -3.0 pC is distributed uniformly on a concentric spherical surface (radius = 4.0cm). Determine the magnitude of the electric field 5.0cm from the center of the two surfaces.
Calculate the least velocity of projection required to give amissile a horizontal displacement of 500m if the angle ofprojection is 24 degrees
A loudspeaker of mass 18.0 {rm kg} is suspended the distance of h = 1.20 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 2.70 {rm m}. What is the tension T in each of the cables? Utili..
A 12.0V dc battery having no appreciable internal resistance, a 146.5? resistor, an 10.6mH inductor, and an open switch are all connected in series. After the switch is closed, what is the maximum energy stored in the inductor
A uniform pole is propped between the floor and the ceiling of a room. The height of the room is 8.00 ft, and the coefficient of static friction between the pole and the ceiling is 0.569. What is the length of the longest pole
A concave makeup mirror is designed so the virtual image it produces is three times the size of the object, What is the radius of curvature of the mirror
As shown in the figure, sunlight is coming straight down (negative z-direction) on a solar panel (of length L = 1.51 m and width W = 0.930 m) on the Mars rover Spirit.
A sailboat leaves a harbor and sails 1.1 km in the direction75 degrees north of east, where the captain stops for lunch. Ashort time later, the boat sails 1.8 km in the direction 15 degreessouth of east. What is the magnitude of the resultant disp..
The frequency of light reaching Earth from a particular galaxy is 16% lower than the frequency the light had when it was emitted. What is the speed of this galaxy relative to the Earth
calculate the specific heat of a metal. in jkg.k from the following data. a container made of the metal has a mass of
The same object is located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
a refracting telescope has an angular magnification of -92.00. the length of the barrel is 1.100 m. what are the
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