Activity 2: Let's Solve! Directions: Answer the following word problems by applying what you have learned in the lesson. Show your complete solution by following the G-R-E-S-A format. 1. A 12-cm-radius air duct is used to replenish the air of a room every 12 min. How fast does the air flow in the duct? 2. Water flows through a garden hose with inner diameter of 1.5 cm at a speed of 2.0 m/s. What speed does the water escape from the nozzle if the opening is reduced to a diameter of 0.50 cm? 3. How fast does water flow from a hole at the bottom of a very wide, 4.7-m-deep storage tank filled with water? 4. A fish tank has dimensions 36 cm wide by 1.0 m long by 0.60 m high. If the filter should process all the water in the tank once every 3.0 h, what should the flow speed be in the 3.0-cm-diameter input tube for the filter