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Chapter 15: Q. 3 (page 415)
When a guitar string plays the note 鈥淎,鈥� the string vibrates at . What is the period of the vibration?
The vibration has a time period of.
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A. Describe the difference between and . Don't just name them; say what is different about the physical concepts they represent.
B. Describe the difference between and .
A molecular bond can be modeled as a spring between two
atoms that vibrate with simple harmonic motion. FIGURE P15.63
shows an SHM approximation for the potential energy of an HCl
molecule. Because the chlorine atom is so much more massive
than the hydrogen atom, it is reasonable to assume that the hydrogen
atom vibrates back and forth while
the chlorine atom remains at rest. Use the graph to estimate the
vibrational frequency of the HCl molecule.
A mass on a string of unknown length oscillates as a pendulum with a period of .
What is the period if
a. The mass is doubled?
b. The string length is doubled?
c. The string length is halved?
d. The amplitude is doubled?
A mass on a -m-long string is pulled to one side and released. How long does it take for the pendulum to reach on the opposite side?
A long, rod is pivoted at one end. A ball of clay is stuck on the other end. What is the period if the rod and clay swing as a pendulum?
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