A damped oscillator is released from rest with an initial displacement of 10.00 cm. At the end of the first complete oscillation the displacement reaches 9.05 cm. When 4 more oscillations are completed, what is the displacement reached?
a. 7.41 cm
b. 6.71 cm
c. 6.07 cm
d. 5.49 cm
e. 5.25 cm
C
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A) melting polar glaciers. B) river flow into the ocean. C) winds. D) density differences in the vertical profile of the ocean.
A long solenoid (1000 turns/m) carries a current of 25 mA and has an inside radius of 2.0 cm. A long wire which is parallel to and 4.0 cm from the axis of the solenoid carries a current of 6.0 A. What is the magnitude of the magnetic field at a point on the axis of the solenoid?
a. 51 ?T b. 61 ?T c. 43 ?T d. 81 ?T e. 1.4 ?T
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