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An air-filled cylindrical inductor has 2600 turns, and it is 2.5 cm in diameter and 28.2 cm long.
(a) What is its inductance?
b) How many turns would you need to generate the same inductance if the core were iron-filled instead? Assume the magnetic permeability of iron is about 1200 times that of free space.
A dolphin has a sonar system that emits sounds with a frequency of 2.0Af-105Hz. The speed of sound in water is 1484m/s. Determine the period of the wave.
A girl swings on a rope above the water. When she lets go of the rope her initial velocity = 2.25 m/s, at an angle of 35 degrees above the horizontal. how high above the water was she when she let go of the rope
An object of mass 263.25285 g executes SHM with an amplitude of 14.906379 cm and a period 29.11989 s. Find the force acting on the object
A parallel-plate capacitor has circular plates of 9.27 cm radius and 1.79 mm separation. Calculate the capacitance in picofarads (pF)
A 190 g block hangs from a spring with spring constant 15 N/m. At t=0s, the block is 13 cm below the equilibrium point and moving upward with a speed of 98.0 cm/s.
A driving force of the form F(t)=(0.237 N) sin(2pi*f*t) acts on a weakly damped spring oscillator with mass 5.72 kg, Find the amplitude of the oscillator's steady-state motion when the driving force has this frequency
A uniform chain with a mass of 1.49 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.471 m/s. Calculate the net force acting on the chain
The suspended 2.82 kg mass on the right is moving up, the 2.2 kg mass slides down the ramp, and the suspended 8.1 kg mass on the left is moving down. There is friction between block and ramp. What is the acceleration of a three block system.
An electron passes through a point 3.27 cm from a long straight wire as it moves at 37.3% of the speed of light, Find the magnitude of the electron\'s acceleration at that point
a bar magnet is dropped through a loop of wire, what is the direction of the current at the instant it is in the middle
an airplane is traveling at 117 mph relative to the air 13 degrees e of n at an altitude of 5000 ft. it encounters a
What is the smallest number of whole logs (? = 725 kg/m3, radius = 0.0917 m, length = 3.10 m) that can be used to build a raft that will carry four people
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