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6. Rachel uses 24 kJ of energy drying her hair with a hairdryer. The hairdryer is 45% encent How much energy is wasted as sound?
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Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h
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Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?
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The particles that are found in the nucleus of an atom are
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6. Rachel uses 24 kJ of energy drying her hair with a hairdryer. The hairdryer is 45% encent
How m...
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