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The potential at the center of a uniformly charged ring is45 kV, and 15 cm along the ring axis the potential is 33 kV. Find the ring's radius and its total charge.
radiustotal charge
At what position is the third bead in equilibrium? Can it be in stable equilibrium.
If a electron after being accelerated by a potential difference of 100 V enters in a uniform magnetc field of 1T perpendicular. Calculate its radius of circular path described by it
A laser produces an average power of 5.5 W in a light beam 1.0 mm in diameter. Find the peak electric field of the laser light
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.0 kg m2. What is the resulting angular speed of the student and the stool
Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 485 newtons and is directed due west.
A microscope slide is placed in front of a converging lens with a focal length of 2.18 cm. The lens forms an image of the slide 10.3 cm from the slide. How far is the lens from the slide if the image is real
An electric motor rotating a workshop grinding wheel at a rate of 8.90 101 rev/min is switched off. Through how many radians has the wheel turned during the interval found in (a)
A 500 kg elevator starts from rest. It moves upward for 2.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
A proton accelerates from rest in a uniform electric field of 524 N/C. What is the magnitude of the acceleration of the proton
A hoop a disk and a solid sphere each have mass of 1.4 kg and a diameter of 16cm. starting from rest, all three objects roll down a 7 degree slope. find the speed of each at the bottom
A block is projected up an inclined, frictionless plane withan intial speed v0. With that intialvlocity, the block travels a distance D and momentarily comesto halt before sliding down the inclined plane.
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