Physical Pendulum: a Uniform Meter Stick Is Freely Pivoted About

question 12

Multiple Choice

Physical pendulum: A uniform meter stick is freely pivoted about the 0.20-m mark. If it is allowed to swing in a vertical plane with a small amplitude and friction, what is the frequency of its oscillations?

• A) 0.55 Hz
• B) 0.66 Hz
• C) 0.92 Hz
• D) 1.1 Hz
• E) 1.3 Hz

Explain the process and characteristics of action potentials, including their phases (depolarization, repolarization, hyperpolarization) and the concept of the all-or-none principle.

Describe the roles of sodium (Na+), potassium (K+), and other ions in generating action potentials and maintaining the resting membrane potential.

Discuss the importance and function of the sodium-potassium pump in maintaining ion concentration gradients across the neuron's membrane.

Identify the phases of an action potential and factors affecting action potential propagation speed, including myelination.

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