A machine shop has 100 equally noisy machines that together
A machine shop has 100 equally noisy machines that together produce an intensity level of 90db. If the intensity level must be reduced to 80db, how many machines must be turned off?
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concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl
1ann page co fixed costs 30000 per year variable costs per unit are 17 sales price per unit is 30awhat is the
predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixeda mncl2
write the total and net ionic equations for the reaction of baso4 dissociation and calculate the trial ksp for the
a machine shop has 100 equally noisy machines that together produce an intensity level of 90db if the intensity level
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a steel wire with mass218g and length16m is strung on a bass so that the distance from the nut to the bridge is 110 ma
a pipe open at both ends has a fundamental frequency of240hz when the temperature is 0degca what is the length of the
two adjacent natural frequencies of an organ pipe are found to be300hz and330hza calculate the fundamental frequency
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