A Heavy Stone of Mass M Is Hung from the Ceiling

question 1

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 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:

Myelinated Axons

Axons that are covered with myelin, a fatty substance that insulates the axon and increases the speed of electrical signal transmission.

Somatic Motor Nervous System

Part of the peripheral nervous system that transmits signals from the central nervous system to skeletal muscles, enabling voluntary movements.

Autonomic Nervous System

A part of the nervous system responsible for controlling involuntary body functions, such as heart rate, digestion, and respiratory rate.

Autonomic Nervous System

The part of the nervous system responsible for control of bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.