What is the average flow rate in of gasoline to the engine of a car traveling at 100 km/h if the car has an average fuel economy of 10.0 km/L?
The Huka Falls on the Waikato River is one of New Zealand’s most visited natural tourist attractions. On average, the river has a flow rate of about L/s. At the gorge, the river narrows to 20 m wide and averages 20 m deep.
What is the average speed of the river in the gorge?
What is the average speed of the water in the river downstream of the falls when it widens to 60 m and its depth increases to an average of 40 m?