A 30m long aluminum wire (m = 64g) and a 20m copper wire (mc = 140g), both with the same diameter, connect end to end and are subjected to a tension of 150 N. How long does it take? a wave to travel the full length of the 2 wires? a. 0.35 s b. 0.25 s c. 0.65 s d. 0.75 s e. 0.85 s f. 0.53 s g. 0.57 s h. 0.92 s

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Q: 5T Consider a wave described by the wave function y (x.f) = 0.75m sin s-1t+), find the time period…

A: Time period is T = 1/f  => T = 2πω = 2π3π7 => T = 4.67 s

Q: 1- Is Intensity an acoustic variable? A. True B. False

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A: Given data:  Frequency of seventh harmonic f7 = 240 Hz Required: The frequency of forth harmonic

Q: Answer questions 1 & 2

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Q: A wave initially has an amplitude of 2m, but its amplitude soon changes to 4m. What is the new wave…

A: The initial amplitude of a wave is, A=2 m The initial energy of the wave is, U1=12kA2=12k22=2k

Q: Physics student is driving the string at the end at an angular frequency of 40.3 Hz. If the…

A: Given Data, Angular frequency ω=40.3 Hz Wavelength λ=5 m

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A: Given: The frequency of the metal rod is 2 Hz.

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A: Given          length of the string is 60 cm

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.