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An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz
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What properties of a moving object are used in determining the object's energy of motion
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Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z
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When lifting or carrying children, you should:
Bend from the waist
Squat down low
Car...
Squat down low
Car...
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