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Two carpenters are hammering at the same time, each at a different hammering frequency. The hammering frequency is the number of hammer blows per second. Every 4.6 s, both carpenters strike at the same instant, producing an effect very similar to a beat frequency. The first carpenter strikes a blow every 0.75 s. How many seconds elapse between the second carpenter s blows if the second carpenter hammers
(a) More rapidly than the first carpenter,
(b) Less rapidly than the first carpenter? |
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