The water depth in a harbour is 13m at high tide and 5m at low tide. The time between high tide and low tide is 5 hours. Based on the above information:
Determine an equation that describes the water depth, ℎ metres, as a sine function of the time, hours, after the low tide. Use exact values . (you can assume that low tide is happening at midnight)
Determine an equation that describes the water depth, ℎ metres, as a sine function of the time, hours, after the low tide. Use exact values . (you can assume that low tide is happening at midnight)