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The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?
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What is the difference between mass density and weight density?
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Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?
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Being overweight or obese increases the risk of:
A. Diabetes
B. Heart disease
C. Stroke...
B. Heart disease
C. Stroke...
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