FUNDAMENTALS OF PHYSICS
12th Edition
ISBN: 9781119798606
Author: Halliday
Publisher: WILEY
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Sketch a sine wave depicting 3 seconds of wave activity for a 5 Hz tone.
The drawing shows two long, straight wires that are suspended from the ceiling. The mass
per unit length of each wire is 0.050 kg/m. Each of the four strings suspending the wires
has a length of 1.2 m. When the wires carry identical currents in opposite directions, the
angle between the strings holding the two wires is 20°. (a) Draw the free-body diagram
showing the forces that act on the right wire with respect to the x axis. Account for each
of the strings separately. (b) What is the current in each wire?
1.2 m
20°
I
-20°
1.2 m
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