Moment of Inertia: A potter's wheel has the shape of a solid uniform disk of mass 7.0 kg and radius 0.65 m. It spins about an axis perpendicular to the disk at its center. A small 2.1 kg lump of very dense clay is dropped onto the wheel at a distance 0.41 m from the axis. What is the moment of inertia of the system about the axis of spin?
A. 1.8 kg ? m2
B. 1.5 kg ? m2
C. 0.40 kg ? m2
D. 2.5 kg ? m2
Answer: A
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The speed of sound in air is a function of which one of the following?
a. wavelength c. temperature b. frequency d. amplitude
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