An employee at Tim Hortons is asked to analyze straw sizes for iced mocha latte beverages....

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An employee at Tim Hortons is asked to analyze straw sizes for iced mocha latte beverages. Many daily customers have stated that they can't drink the iced latte easily using the current straws, which are 8 mm in diameter and 30 cm long. Assume that an iced latte beverage has a density of 1,200 kg/m3 and a viscosity, μ, of 6 Pa-s. Assume laminar flow, that gravitational effects are negligible, that the end of the straw is just below the beverage surface (so that flow occurs over the entire length of the straw), and that a minimum flow rate of 29.6 mL/min (1 fluid ounce/min) must be achieved through the straw for the beverage to be considered drinkable by an average adult. You must show relevant calculations to support your answers to the questions below. a) If a customer's lungs can develop approximately 3,000 Pa of vacuum pressure, would a iced latte be drinkable using these straws? b) If the straw's length is reduced from 30 cm to 15 cm, would an average adult be able to drink from this straw? c) If the straw length is 20 cm, what is the minimum diameter needed to allow an average adult to drink from the straw? An employee at Tim Hortons is asked to analyze straw sizes for iced mocha latte beverages. Many daily customers have stated that they can't drink the iced latte easily using the current straws, which are 8 mm in diameter and 30 cm long. Assume that an iced latte beverage has a density of 1,200 kg/m3 and a viscosity, μ, of 6 Pa-s. Assume laminar flow, that gravitational effects are negligible, that the end of the straw is just below the beverage surface (so that flow occurs over the entire length of the straw), and that a minimum flow rate of 29.6 mL/min (1 fluid ounce/min) must be achieved through the straw for the beverage to be considered drinkable by an average adult. You must show relevant calculations to support your answers to the questions below. a) If a customer's lungs can develop approximately 3,000 Pa of vacuum pressure, would a iced latte be drinkable using these straws? b) If the straw's length is reduced from 30 cm to 15 cm, would an average adult be able to drink from this straw? c) If the straw length is 20 cm, what is the minimum diameter needed to allow an average adult to drink from the straw?