a stretched string is observed to vibeate with a frequency of 30 Hzmin its funda

Question

a stretched string is observed to vibeate with a frequency of 30 Hzmin its fundamental mode when the supportes are 60cm apart. the string has of 30g,

a: What is the speed of propagatiin of a transverse wave in the string?

b: What is the tension in the string?

Q2:

A physics student , late for class , is speeding on the NYS thruway. she passes a police car, which is stopped on the side of the road. After the student passes ,the siren on the police car is turned on. The police car then begins pursuit of the student. When the police car traveling with aspeed of 120 miles per hours the student observes the siren of the police car to be 18% higher in frequency thanit was before beginning pursuit , Assuming the student travels with a constant speed , what is the air temperature in degree Celsuis?

Explanation / Answer

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