Question

Finally, explain how mixed tides are created by the moon (according to the equilibrium theory) when it is at its maximum northern or southern declination angle.

Include the two tidal bulges of the tide in your answer and describe the HWs a person at, say, 28 N would observe during one lunar day. You may want to draw a picture on scratch paper to help you visualize your answer.

Answer 1

Mixed tides are created by the gravitational forces of the Moon, especially when it is at its maximum declination. The Earth's rotation causes locations to pass through two tidal bulges, resulting in two high tides during one lunar day for an observer at 28 degrees North.

Step-by-step explanation:

Mixed tides, which include varying high and low water levels during a single lunar day, are created by the Moon's gravitational pull on the Earth's oceans, especially when the Moon is at its maximum northern or southern declination angle. According to the equilibrium theory of tides, the ocean water is drawn towards the Moon, creating a tidal bulge on the side of Earth facing the Moon.

Simultaneously, on the opposite side of Earth, another tidal bulge is formed due to the gravitational forces pulling the Earth away from the water. As the Earth rotates, each geographic location passes through these bulges, experiencing high waters (HWs). At 28 degrees North, a person would witness the high tides as their location moves through each of these tidal bulges during one lunar day, which lasts approximately 24 hours and 50 minutes.