A particular guitar string is supposed to vibrate at 203 hz, Ask an Expert

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Q. A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value?

Q. A car speeds past a stationary police officer while travelling 105 km/h. The officer immediately begins pursuit at a constant acceleration of 12.0 km/h/s (note the mixed units), while the driver passes the officer.

How much time will it take for the police officer to catch up to the speeding car, assume that the car maintains a constant speed?

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Category:- Physics
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