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Long Straight Wire A long straight wire has fixednegative charge with a linear charge density of -3.1 nC/m. The wire is to be enclosed by a thin,nonconducting cylinder of outside radius 1.6 cm, coaxial with the wire. The cylinder is to havepositive charge on its outside surface with a surface chargedensity σ such that the net external electric fieldis zero. Calculate the require
Four wires meet at a junction. In two of the wires currents I1 = 1.03 A and I2 = 2.05 A enter the junction. In one of the wires current I3 = 6.17 A leaves the junction. Find the current in the fourth wire and indicate its direction.
If the rms electric field of this light is 16.0N/C at a distance of 1.30m from the bulb, what is the average total power radiated by the bulb
When the sum of all forces acting on a system is zero, the system is said to exist in a state of equillibrium. What is the mass corresponding to this force
Tension is maintained in a string as in the figure below. The observed wave speed is 22 m/s when the suspended mass is 3.0 kg. What is the mass per unit length of the string?
A car traveling at a constant speed of 21.5 m/s passes a trooper hidden behind a billboard. One second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.10 m/s2. How long does it take the ..
A simple pendulum has a mass of 0.150 kg and a length of 1.00 m. It is displaced through an angle of 10.0° and then released. What is the maximum restoring force
A small metal bead, labeled A, has a charge of 29 . It is touched to metal bead B, initially neutral, so that the two beads share the 29 charge, but not necessarily equally. When the two beads are after that placed 5.0 apart, the force between the..
A flywheel in a motor is spinning at 580 {rm rpm} when a power failure suddenly occurs. The flywheel has mass 40 {rm kg} and diameter 75 {rm cm}.
What is the speed of the arrow as it leaves the bow.
What is the distance between the centers of the two slits? Describe answer in m.
A particle of mass m kg is attached to one end A of a model spring OA of natural length L0 = 1.05 m and stiffness K N/m. The spring is hung vertically with the end O fixed and end A attach to the particle, which moves in a vertical line.
A cubic metal box with sides of 18 cm contains air at a pressure of 1 atm and a temperature of 311 K. Find the force due to the internal air pressure on each wall
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