In the arrangement shown in the figure below, an object of mass m = 4.0 kg hangs from a cord around a light pulley. The length of the cord between point P and the pulley is L = 2.0 m. (Ignore the mass of the vertical section of the cord.) Vibrator - (a) When the vibrator is set to a frequency of 120 Hz, a standing wave with six loops is formed. What must be the linear mass density of the cord? |× kg/m (b) How many loops (if any) will result if m is changed to 144 kg? (Enter 0 if no loops form.) X loops (c) How many loops (if any) will result if m is changed to 14 kg? (Enter 0 if no loops form.) X loops

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Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.