A Heavy Stone of Mass M Is Hung from the Ceiling

question 44

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 wavelength of the sound it will produce?

• A) 0.217 m
• B) 0.433 m
• C) 0.650 m
• D) 0.899 m
• E) 1.35 m

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Definitions:

Crashing

The process of expediting project completion typically by adding more resources or by working extra hours, often resulting in increased costs.

Critical Path

The sequence of tasks that determines the minimum completion time for a project, where any delay will result in a delay of the entire project.

Project Completion Date

The specifically scheduled date by which all work on a project is expected to be completed.

Crashing

A project management technique that involves adding additional resources to critical tasks to shorten the project duration.