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4. The solid line below is a graph of pressure vs. position for a harmonic pressure wave in air (a sound wave) with a speed of 330 m/s, an amplitude of 60 Pa, and a frequency of 400 Hz. The dotted line is the graph of a 2nd sound wave, also with a speed of 330 m/s. What is the A) amplitude, B) angular frequency, and C) wavenumber of this 2nd wave? P pwan

4. The solid line below is a graph of pressure vs. position for a harmonic pressure wave in air (a sound wave) with a speed of 330 m/s, an amplitude of 60 Pa, and a frequency of 400 Hz. The dotted line is the graph of a 2nd sound wave, also with a speed of 330 m/s. What is the A) amplitude, B) angular frequency, and C) wavenumber of this 2nd wave? P pwan

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e 4. The solid line below is a graph of pressure vs. position for a harmonic pressure wave in air (a sound wave) with a speed of 330 m/s, an amplitude of 60 Pa, and a frequency of 400 Hz. The dotted line is the graph of a 2nd sound wave, also with a speed of 330 m/s. What is the A) amplitude, B) angular frequency, and C) wavenumber of this 2nd wave? P Avan 5. Keeping in mind that the moment of inertia of a solid sphere is I = MR², consider a solid sphere with radius 4 cm rolling without slipping along the landscape shown. If the ball at the initial position at left has a speed of 3 m/s, what is its speed at the top of the 0.5 m hill? 1.0 m 3 m/s 0.5 m 0m t=0 4 m/s 6. mm 20 g A mass attached to a spring sliding on a frictionless surface is traveling right at 4 m/s when it reaches the spring's x = 0 equilibrium point at t = 0. A bit later, when it has stretched the spring 1 cm, it has slowed to 3 m/s. The simple harmonic motion of this mass is described by the equation x(t) = xm cos(wt + p). x=0 3 m/s t>0 mm 20 g A) What is w in rad/s? x = 1 cm B) What is xm in cm? C) What is in radians?
Transcribed Image Text:e 4. The solid line below is a graph of pressure vs. position for a harmonic pressure wave in air (a sound wave) with a speed of 330 m/s, an amplitude of 60 Pa, and a frequency of 400 Hz. The dotted line is the graph of a 2nd sound wave, also with a speed of 330 m/s. What is the A) amplitude, B) angular frequency, and C) wavenumber of this 2nd wave? P Avan 5. Keeping in mind that the moment of inertia of a solid sphere is I = MR², consider a solid sphere with radius 4 cm rolling without slipping along the landscape shown. If the ball at the initial position at left has a speed of 3 m/s, what is its speed at the top of the 0.5 m hill? 1.0 m 3 m/s 0.5 m 0m t=0 4 m/s 6. mm 20 g A mass attached to a spring sliding on a frictionless surface is traveling right at 4 m/s when it reaches the spring's x = 0 equilibrium point at t = 0. A bit later, when it has stretched the spring 1 cm, it has slowed to 3 m/s. The simple harmonic motion of this mass is described by the equation x(t) = xm cos(wt + p). x=0 3 m/s t>0 mm 20 g A) What is w in rad/s? x = 1 cm B) What is xm in cm? C) What is in radians?
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