Two recordings were made of a musical performance: one analog, one digital. Copies were made of each recording to sell. The table below
compares the copies made using analog and digital signals.
Original sound
recording
Copy of sound
recording
Analog
resort
Digital
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What are two reasons the digital signal is a more reliable way to copy sound
recordings than the analog signal?

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.

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