1. Water is flowing in an 8-inch-diameter new cast iron pipe with a velocity of 7.49 ft/s. The friction factor is 0.0215. What is the friction head loss over a length of 115 feet? 2. Water is flowing...

1. Water is flowing in an 8-inch-diameter new cast iron pipe with a velocity of 7.49 ft/s. The friction factor is 0.0215. What is the friction head loss over a length of 115 feet?

2. Water is flowing in a 36-inch concrete pipe (finished surface) with a velocity of 12.5 ft/s. What is the friction head loss over a length of 225 feet?