Question

1. the graph below shows the change in tide heights of the hudson river at newburgh, new york.

according to the graph, the time difference between high tide and the next low tide is approximately
a) 3 hours b) 12 hours
c) 6 hours d) 2 hours

1. the diagram below represents the moon at one position in its orbit around earth.

which diagram represents the phase of the moon as viewed by an observer in new york state when the moon is located at the position shown?
a) b)
c) d)

Explanation:

39.

Step1: Analyze the graph

Look at the graph of tide heights. Identify a high - tide point and the subsequent low - tide point.

Step2: Calculate the time difference

Assume a high - tide occurs at a certain time (e.g., 3 p.m. on May 3). The next low - tide occurs approximately 6 hours later (e.g., 9 p.m. on May 3).

The Moon's phase as viewed from Earth depends on the relative positions of the Sun, Earth, and Moon. When the Moon is in the given position in its orbit (with the Sun's rays coming from the right in the diagram), the right - half of the Moon is illuminated. In the Northern Hemisphere (New York State is in the Northern Hemisphere), the Moon's phases are observed such that the illuminated part is on the right for a waxing phase. Option C shows the right - half of the Moon illuminated.

Answer:

C. 6 hours

40.