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Question
What frequency of sound traveling in air at 20°C has a wavelength equal to 1.7 m,
the average height of a person?
Question
A 220-Hz
sound travels through pure argon. The wavelength of the sound is measured to be 1.45 m.
What is the speed of sound in argon?
Question
What is the speed of sound (in m/s) in air at the normal boiling temperature of water?
Question
A 2.4 cm-tall object stands in front of a converging lens. It is desired that a virtual image 2.7 times larger than the object be formed by the lens. How far from the lens (in cm) must the object be placed to accomplish this task, if the final image is located 16 cm from the lens?
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