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A point charge Q is located a distance r>R from the center of a nongrounded conducting spherical shell with radius R and net charge that is also
If the point charge is very far from the shell, then the shell looks essentially like a point charge Q, so the force between the two objects is repulsive.But if the point charge is very close to the shell, the the excess negative charge on the near side of the shell dominates, so the force is attractive. Show that the value of r where the force makes the transition from repulsive to attractive is r= R(1+5?)/2?(1.618)R . The factor here is the golden ratio.(In your solution, don't panic if you end up with a quintic equation. Just show that it has a factor of the form x^2-x-1.)?
Find the angular acceleration - What is the torque on the rod when it makes an o angle q with the vertical - Find the kinetic energy of a solid sphere of mass 0.5 kg and radius 10 cm that rolls without slipping on level ground
An RLC circuit is used to tune a radio to an FM radio station broadcasting at 33.7 MHz. What inductance should be present in the circuit
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 2.2 cubic meters of sea water. What is the buoyant force acting on the object in newtons
For an electromagnetic wave propagating in sodium, Determine the penetration depth for 10^6, 10^15, and 2*10^15 Hz
A boxcar of mass 5.68×10^4 kg is rolling south at 2.33 m/s when it collides with, and couples to, another boxcar of mass 5.11 x 10^4 kg which is initially at rest. After collision, what is the velocity of the coupled boxcars?
a point charge q1=2 microC is located on the positive y axis at y=0.30 m, and an identical charge q2 is at the origin. Find the magnitude and direction of the total force
Find the potential on the axis of a charged ring carrying some charge density (lamda) uniformly distributed around it
An unbanked circular highway curve on level ground makes aturn of 90 degrees. What is the minimum length of the curve in miles
A runner is going 25m/s around a curved section of tract that has a radius of 125m. What is the runner's acceleration
Two circular coils of current-carrying wire have the same magneticmoment. The first coil has a radius of 0.082 m, has 144 turns, andcarries a current of 3.9 A. The secondcoil has 183 turns and carries a currentof 9.6 A. What is the radius of the seco..
The rotor of an electric motor has rotational inertia Im = 7.59 x 10-3 kg·m2 about its central axis. The motor is used to change the orientation of the space probe in which it is mounted. The motor axis is mounted along the central axis of the probe;
To reach the rack, the ball rolls up a ramp that rises through a vertical distance of h = 0.547 m. What is the linear speed of the ball when it reaches the top of the ramp
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