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A 16.5-m-long cable consists of asolid-inner, cylindrical, nickel core 2.0cm in diameter surrounded by a solid-outer cylindrical shell of copper 2.0 cm in inside diameter and4.0 cm in outside diameter. There sistivity of nickel is 7.8*10-8 Ω · m, and the resistivity of copper is 1.72*10-8 Ω · m.a) What is the resistance of this cable?b) If we think of this cable as a single material, what is itsequivalent resistivity?
A generator uses a coil that has 116 turns and a 0.455 T magnetic field. The frequency of this generator is 70.0 Hz, and its emf has an rms value of 115 V. Assuming that each turn of the coil is a square (an approximation), determine the length of th..
The pendulum in a grandfather clock is made of brass and keeps perfect time at 20?C. How much time is lost in a year
A generator has a square coil consisting of 356 turns. The coil rotates at 91.5 rad/s in a 0.211-T magnetic field. What is the length of one side of the coil
A 18cm tall image is located at 4 cm behind a concave mirror with a focal length 5 cm. Find the location of object, its height, and the magnification
man 1 was experimenting with friction and attempting to pull man 2 across the surface of a floor. man 1 applies a
Object O1 is 15.9 cm to the left of a converging lens with a 10.2-cm focal length. What is the overall magnification of this system
A rod of mass 0.720 kg and radius 6.00 cm rests on two parallel rails (see figure below) that are d = 12.0 cm apart and L = 45.0 cm long. what is the speed of the rod as it leaves the rails
A generator has a square coil consisting of 188 turns. The coil rotates at 118 rad/s in a 0.222-T magnetic field. What is the length of one side of the coil
You're riding on a cart, carrying a box, moving at an initial speed of vi. You throw the box off the cart such that it lands at rest, what will be the final speed of the cart
A parallel beam of light with an energy flux S of 10 W/cm2 falls for 1 hour on a perfectly reflecting plane mirror of 1.0 cm2 area. what force acts on the mirror
Two people carry a heavy electric motor by placing it on a light board 1.55 m long. One person lifts at one end with a force of 390 N, What is the weight of the motor
A puck of mass 80.0 g and radius 4.30 cm slides along an air table at a speed of 1.50 m/s, What is the Angular Speed about the center of mass
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