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A sound level of 80 dB has twenty times the amplitude of a 60 dB sound.
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Q39: The wavelength of a wave divided by
Q43: The specific heat capacity of a substance
Q65: Which of the following quantities are conserved
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Q105: The increase in the amount of carbon
Q130: used in thermostats and some thermometers<br>A)bimetallic strip<br>B)Carnot
Q151: An atom with fewer electrons than protons