A Bus Leaves New York City, Takes a Non-Direct Route

question 12

Multiple Choice

A bus leaves New York City, takes a non-direct route and arrives in St. Louis, Missouri 23 hours, 16 minutes later. If the distance between the two cities is 1250 km, what is the magnitude of the bus' average velocity?

• A)37.2 km/h
• B)41.4 km/h
• C)46.0 km/h
• D)53.7 km/h
• E)58.1 km/h

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Definitions:

Myelin Sheath

The fatty layer that covers and insulates axons of many neurons, facilitating the rapid transmission of nerve impulses.

PNS

Abbreviation for Peripheral Nervous System, which encompasses all the nerves outside the brain and spinal cord and connects the CNS to the limbs and organs.

CNS

Stands for Central Nervous System, which includes the brain and spinal cord, responsible for processing and sending out information throughout the body.

Blood-Brain Barrier

A protective mechanism that controls the passage of substances from the bloodstream into the brain tissue.