Final answer:
The time it takes for one wavelength to travel through the origin of the graph is approximately 0.0714 seconds.
Step-by-step explanation:
To calculate the time it takes for one wavelength to travel through the origin of the graph, we can use the formula:
Time = Distance / Speed
The distance between two crests in one wavelength is equal to the wavelength, which is given as 2.5 cm.
So, the distance is 2.5 cm. The speed of the wave is given as 35 cm/sec.
Plugging these values into the formula, we get:
Time = 2.5 cm / 35 cm/sec
Time = 0.0714 sec
Therefore, it would take approximately 0.0714 seconds for one wavelength to travel through the origin of the graph.