Asource of sound is detected in the middle of a room. which can account for a decrease in sound intensity for an observer?
a) a decrease in speed from the source
b) an increase in speed from the source
c) a decrease in the radius from the source
d) an increase in the radius from the source
Answers: 2
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A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?
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Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length
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If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
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Asource of sound is detected in the middle of a room. which can account for a decrease in sound inte...
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