Waves on a String: a Heavy Stone of Mass M

question 30

Multiple Choice

Waves on a string: 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 stone is heavy enough to prevent the lower end of the wire from moving. What is the mass m of the stone?

• A) 8.90 kg
• B) 23.1 kg
• C) 35.6 kg
• D) 227 kg
• E) 349 kg

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Definitions:

Self-confidence

The belief in one's own abilities and judgment, enabling an individual to face challenges, take risks, and express themselves confidently.

Independence

The state or quality of being self-sufficient and free from outside control, making decisions without undue influence from others.

Physiological

Pertaining to the branch of biology that deals with the normal functions of living organisms and their parts.

Self-actualization

The realization or fulfillment of one's talents and potentialities, considered as a drive or need present in everyone.