A musical note on a piano has a frequency of 45 Hz. If the tension in the 2-m string is 308 N, and one-half wavelength occupies the string, what is the mass of the wire? O 0.047 kg O 0.024 kg O 0.031 kg 0.040 kg O 0.019 kg

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A musical note on a piano has a frequency of 45 Hz. If the tension in the 2-m
string is 308 N, and one-half wavelength occupies the string, what is the mass of
the wire?
0.047 kg
0.024 kg
0.031 kg
O 0.040 kg
0.019 kg
A mass-spring system oscillates on a frictionless horizontal surface in simple
harmonic motion with an amplitude A = 0.2 m. At what position (x = ?) would the
kinetic energy of the system be equal to three times its elastic potential energy
(K = 3U)?
Transcribed Image Text:A musical note on a piano has a frequency of 45 Hz. If the tension in the 2-m string is 308 N, and one-half wavelength occupies the string, what is the mass of the wire? 0.047 kg 0.024 kg 0.031 kg O 0.040 kg 0.019 kg A mass-spring system oscillates on a frictionless horizontal surface in simple harmonic motion with an amplitude A = 0.2 m. At what position (x = ?) would the kinetic energy of the system be equal to three times its elastic potential energy (K = 3U)?
0.019 kg
A mass-spring system oscillates on a frictionless horizontal surface in simple
harmonic motion with an amplitude A = 0.2 m. At what position (x = ?) would the
kinetic energy of the system be equal to three times its elastic potential energy
(K = 3U)?
O At x = +0.1 m
O At x = +0.025 m
O At x = ±0.08 m
At x = +0.05m
At x = +0.04 m
Transcribed Image Text:0.019 kg A mass-spring system oscillates on a frictionless horizontal surface in simple harmonic motion with an amplitude A = 0.2 m. At what position (x = ?) would the kinetic energy of the system be equal to three times its elastic potential energy (K = 3U)? O At x = +0.1 m O At x = +0.025 m O At x = ±0.08 m At x = +0.05m At x = +0.04 m
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