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Two circular coils are concentric and lie the same plane. The inner coil contains 120 turns of wire, has a radius of 0.017 m, and carries a current of 7.8 A. The outer coil has a radius of 0.033 m and carries a current of 15.1 A. A) What is the number of turns in the outer coil, such that the net magnetic field at the common center of the two coils is zero? B) What is the magnetic field strength experience by both? C) If the outer coil was the only coil what would be its maximum torque?
Two hockey players are traveling at velocities of v1 = 11 m/s and v2 = -20 m/s when they undergo a head-on collision. What is the mass of the other player
A small air-core solenoid has a length of 18 cm and a radius of 0 . 53 cm. The permeability of free space is 1 . 25664 × 10 ? 6 N / A 2 . how many turns per centimeter (whole turns plus fractional turns) are required
A clock has an aluminum pendulum with a period of 1.000 s at 20.7 °C. Suppose the clock is moved to a location where the average temperature is 32.2 °C. (The linear expansion coefficient for aluminum is 2.20 10-5 °C?1.)
A gamma-ray telescope intercepts a pulse of gamma radiation from a magnetar, a kind of star with a spectacularly large magnetic field. The pulse lasts 0.16 s and delivers 9.5 x10 -6 J of energy vertically to the 59-m 2 surface area of the telescope..
The difference in electric potential between a thunder cloud and the ground is 1.58 108 V, Determine the change in electric potential energy of one of the electrons that move to the cloud
A Van de Graaff generator has a spherical dome of radius 25 cm. Operating in dry air, where "atmospheric breakdown" is at Emax = 3.0 · 106 N/C, obtain the maximum charge that can be held on the dome
The coefficient of kinetic friction between the floor and a block is 0.25. compute how far can it be pushed across the level floor with 710 Joule of work
If light with a wavelength of 6.155 x 10-7 m passesthrough a diffraction grid with 953 slits per centimeter, at whatangular displacement from the center line would the first bright fringe from the center appear on the screen?
A proton initially has a v = 4.0i-2.0j+3.0k and then 4 sec later has a v (Vector) = -2.0i - 2.0j+5.0 k (in m/s). For that 4.0 second, Determine the protons average acceleration
A wheel initially at rest begins rotating because of a constantangular acceleration. During a certain interval ΔT =16 s, the wheel goes through 110 rev and reaches an angular speedof 11 rev/s.
Identifying the three types of qualitative research most appropriate for DBA
a teacher standing in a doorway 1.0 m wide blows a whistle with a frequency of 1000 hz to summon children from the playground. which boy may not hear the whistle
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