A coaxial cable consists of an inner cylindrical conductor of radius 3 cm on the axis of an outer hollow cylindrical conductor of inner radius 7 cm and outer radius of 10 cm. The inner conductor carries current 4.5 A in one direction, and the outer conductor carries current 8 A in the opposite direction. (a) What is the value of the magnetic field at distances 8 cm and 20 cm from the axis of the cable? (b) Draw how the magnitude of the magnetic field changes with the distance from the axis of the cable.
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To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?
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An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d
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The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 Γ 1013 rad/s. the mass of a nickel atom is 9.75 Γ 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 Γ 10-34 j β’ s, , 1 ev = 1.60 Γ 10-19 j)
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A coaxial cable consists of an inner cylindrical conductor of radius 3 cm on the axis of an outer ho...
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