A Heavy Stone of Mass M Is Hung from the Ceiling

question 38

Multiple Choice

A heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long.When you gently pluck the upper end of the wire,a pulse travels down the wire and returns 7.84 ms later,having reflected off the lower end.The speed of sound in the room is 344 m/s,and the stone is heavy enough to prevent the lower end of the wire from moving.If the wire is vibrating in its second overtone,what is the frequency of the sound it will produce?

• A) 128 Hz
• B) 191 Hz
• C) 255 Hz
• D) 383 Hz
• E) 765 Hz

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Definitions:

Reaction Process

The series of steps that lead to the conversion of reactants into products during a chemical reaction, including all intermediate forms and mechanisms.

Cyclopentane

A cyclic alkane with the formula C5H10, characterized by a ring of five carbon atoms.

Boiling Point

The temperature at which a substance changes from a liquid to a gas.

Alkanes

Hydrocarbons consisting entirely of single-bonded carbon and hydrogen atoms and are the simplest form of hydrocarbons.