A 2.0 m length of piano wire is undergoing testing. The wire is known to have a mass of 22 g. A wave pulse is sent along the wire and is measured to travel at 220 m/s. Note: the mass per unit length of the wire is designated as u The wave speed on the string depends on the linear mass density (u) and the tension: = What is u in g/m for this wire? What is u in kg/m for this wire? What is the tension in N?

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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.