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The electric field on the axis of a uniformly charged ring has magnitude 350kN/c at a point 6.0cm from the ring center. The magnitude 22cm from the center is 150kN/c ; in both cases the field points away from the ring.Find rings radius in cm? Find the rings charge in nC?
An L-R-C circuit has an inductance of 0.490H , a capacitance of 2.90×10?5F , and a resistance of R. What is the angular frequency of the circuit when R=0
A beam of light enters the fiber from air at an angle theta1 with respect to the normal. What is theta1 if light strikes the core-cladding interface at critical angle theta c.
A sled weighing 1.0 X 10^2 N is held in place on a frictionless 20.0 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the normal force of the slope acting on the sled.
Two long straight parallel wires are 12cm apart. Determine the force on wire A due to wire B, and the force on wire B due to wire A.
A worker pushes a sled with a force of 50 N over a level distance of 7.0 m. what net work is done on the sled
A generator is manufactured to produce a maximum EMF of 200v while rotating with an angular speed of 1000rpm. What is the voltage induced within the coil inside the transformer due to the coil in the generator
A 1-cm-thick layer of water stands on a horizontal slab of glass. After entering the glass, what is the ray's angle from the normal
For a wavelength at the peak of visual sensitivity, 550 nm, how many photons lead to an observable flash
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part (1). What should be the maximum speed of the car so it can round the curve safely.
If the ball is free from rest at a height of 0.67 above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? Suppose the ball is a solid sphere of radius 2.2 and mass 0.14.
An alternating emf source with a variable frequency fd is connected in series with a 50.0 ? resistor and a 20.3 ?F capacitor. find the angular speed at which the phasors rotate
A 14.0-m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 63deg angle with the horizontal. what is the coeffecient of static friction between ladder and ground
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