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Find the wavelength of a sound wave with a frequency of 440Hz. (Sound travels at β 330 m/s).
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As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.
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Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?
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Find the wavelength of a sound wave with a frequency of 440Hz. (Sound travels at β 330 m/s)....
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