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Two concentric spherical shells have equal but opposite charges spread uniformly over their surfaces The inner shell has radius a and is positively charged (+Q), while the outer shell has radius b and is negatively charged (-Q) The electric field is given by
Calculate the electric potential energy stored in the system, by integrating the energy density u = ½∈DE2 over all space.
a square loop of wire is held in a uniform 0.21t magnetic field directed perpendicular to the plane of the loop. the
A 75 kg person escapes from a burning building by jumping from a window 25-m above a catching net. Assuming that air resistance exerts a 95-N force on the person all through the fall, determine out the person's velocity just before hitting the net..
A block of mass M = 5.90 kg, at rest on a horizontal frictionless table, is attached to a rigid support by a spring of constant k = 5960 N/m. find the amplitude of the resulting simple harmonic motion
The frequency for an AC source in an RLC circuit is 5 x 102 rad/s and its half of the resonance frequency. Obtain the current and the voltage drop in the resistor
A sinusoidal voltage ?v = (75 V) sin (140t) is applied to a series RLC circuit with L = 20 mH, C = 100 ?F, and R = 46 ?. What is the impedance of the circuit
An empty freight car of mass 8000 kg rolls at 5 m/sec along a level track and collides with a loaded car of mass 16,000 kg, standing at rest with its brakes released. If the cars couple together, find their speed after the collision. Also, find the d..
A 200kg car is traveling 22 m/s. Find the kinetic energy in Joules. b) The same car is lifted vertically upward and then dropped from rest. Find the height from which it is dropped if it strikes the ground at 22 m/s (neglect air resistance).
question the hobby-eberly telescope in fort davis texas is the largest optical telescope in north america. the primary
The front spring of a car's suspension system has a spring constant of 2.32 x 106 N/m and supports a mass of 183 kg. The wheel has a radius of 0.433 m. The car is traveling on a bumpy road, on which the distance between the bumps is equal to the c..
A steel beam that is 7.00m long weighs 330N. It rests on two supports, 3.00m apart, with equal amounts of beam extending from each end. Suki, who weighs 505 N, stands on the beam in the center and then walks toward one end. How close to the end can s..
The total energy contained in a closed, sealed, rigid can of tuna is 3000. J with a total entropy of 2.8330 J/K. The ground state total energy, total entropy, and temperature of the system are 100.0 J, 0.0275 J/K, and 20.0°C,
One component of a magnetic field has a magnitude of 0.028 T and points along the +x axis, Find the magnitude of the net magnetic force that acts on the particle
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