5499

Physics Waves And Oscillations Level: Misc Level

Write the letter of the choice that best completes the statement or answers the question. The time interval during which motion repeats is the--

[A] wave pulse [B] frequency [C] period [D] wavelength




5474

Physics Waves And Oscillations Level: Misc Level

A piano string of length 1.50 m and mass density 26.0 mg/m vibrates at a ( fundamental) frequency of 450.0 Hz.

(a) What is the speed of the transverse string waves? m/s

(b) What is the tension? N 

(c) What are the wavelength and frequency of the sound wave in air produceed by vibration of the string? The speed of sound in air at room temperature is 340 m/s. m Hz




5473

Physics Waves And Oscillations Level: Misc Level

Two waves with identical frequency but different amplitudes A1=6.0 cm and A2=3.0 cm, occupy the same regin of space( are superimposed).

(a) At what phase difference does the resulting wave have the largest amplitude?What is the amplitude of the resulting wave in that case? cm

(b)At what phase difference does the resulting wave have the smallest amplitude and what is its amplitde? cm




5471

Physics Waves And Oscillations Level: Misc Level

The speed of sound in air at room temperature is 338 m/s.

(a) What is the frequency of a sound wave in air with wavelength 2.5 m? Hz

(b) What is the frequency of a radio wave with the same wavelength? ( Radio waves are electromagnetic waves that travel at 3.0x 108 m/s in air or in vacuum.) Hz




5470

Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms




5469

Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms




5468

Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms




5467

Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms




5466

Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms




5465

Physics Waves And Oscillations Level: Misc Level

A uniform string of length 10.0 m and weight 0.35 N is attached to the ceiling.A weight of 1.00 kN hangs from its lower end. The lower end of the string is suddenly displaced horizontally. How long does it take the resulting wave pulse to travel to the upper end? [ Hint: Is the weight of the string negligible in comparison with that of the hanging mass?] ms




5423

Physics Waves And Oscillations Level: Misc Level

The amplitude of oscillation of a pendulum decays by a factor of 22.0 in 120 s, By what factor has its energy decayed in that time?

( initial energy /final energy)




5422

Physics Waves And Oscillations Level: Misc Level

A 0.60 kg mass is suspended from a string,forming a pendulum. The period of this pendulum is 2.2 s when the amplitude is 2.1 cm.The mass of the pendulum is now reduced to 0.22 kg.What is the period of oscillation now, when the amplitude is 1.1 cm?s




5421

Physics Waves And Oscillations Level: Misc Level

A body is suspended vertically from an ideal spring of spring constant 2.9 N/Mm. The spring is initially in its relaxed position. The body is then released and oscillates about its equilibrium position. The motion is described by the following equation. y=(4.0 cm) sin [( 0.67 rad/s)]

What is the maximum kinetic energy of body? mJ




5420

Physics Waves And Oscillations Level: Misc Level

Equipment to be used in airplanes or spacecraft is often subjected to a shake test to be sure it can withstand the vibrations that may be encountered during flight. A radio receiver of mass 5.22 kg is set on a platform that vibrates in SHM at 101 Hz and with a maximum acceleration of 92 m/s2.

(a) Find the radio s maximum displacement.m 

(b) Find the radio s maximum speed. m/s

(c) Find the maximum net force exerted on it. N




5419

Physics Waves And Oscillations Level: Misc Level

The prong of a tuning fork moves back and forth when it is set into vibration. The distance the prong moves between its extreme positions is 2.27 mm. If the frequency of the tuning fork is 441.0 Hz, what are the maximum velocity and the maximum acceleration of the prong? Assume SHM.

m/s

m/s2


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