Loudness, pitch, and timbre
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Answer: 7.74 newtons</h3>
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Steps Shown:
Work = Force*Displacement
Power = Work/Time
Power = (Force*Displacement)/Time
900 W = (F*1000 m)/(8.6 sec)
900 = (F*1000)/8.6
900*8.6 = 1000F
7740 = 1000F
1000F = 7740
F = 7740/1000
F = 7.74 newtons
Pitch is way to relate a sound to its frequency. High frequencies have high pitches (think of a flute), and low frequencies have low pitches (think of a bass). <span>
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The correct answer is 19.72 °C. The first step is to determine the amount of heat that was lost per gram (30,000 J) / (390 g) = 76.92 J/g. Then to determine the temperature change, divide 76.92 J/g with the given specific heat of milk (76.92 J/g) / (3.9 J/g°C) = 19.72 °C.
