Solve the Problem. -Two Bicyclists, 42 Miles Apart, Begin Riding Toward Each Other

question 80

Essay

Solve the problem.
-Two bicyclists, 42 miles apart, begin riding toward each other on a long straight avenue.
One cyclist travels 15 miles per hour and the other 20 miles per hour. At the same time,
Spot (a greyhound), starting at one cyclist, runs back and forth between the two cyclists as
they approach each other. If Spot runs 38 miles per hour and turns around instantly at each
cyclist, how far has he run when the cyclists meet?

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Definitions:

Resting Potential

The electric potential difference across the neuronal membrane when the nerve is not transmitting a signal.

Potassium Ions

Charged particles of potassium, a crucial mineral that plays key roles in cell function, including heart rhythm, muscle contraction, and nerve transmission.

Chloride Ions

Negatively charged particles (ions) that play key roles in maintaining cell stability, transmitting nerve impulses, and regulating fluid inside and outside of cells.

Sodium-Potassium Pump

A crucial cellular mechanism that moves sodium ions out of and potassium ions into cells, vital for maintaining cellular function and electrochemical gradients.