13. How much water will flow in one minute through 200mm of a tube 1.5mm in diameter if the pressure across the tube is 10 cmHg

The volumetric flow rate is 0.00589 cm³ /s

Explanation:

Given;

length of the tube, L = 200 mm = 20 cm

diameter of the tube, 1.5 mm

radius of the tube, r = 0.75 mm = 0.075 cm

Area of the tube is given by;

A = πr²

A = π(0.075)² = 0.0177 cm²

Velocity of water through the tube is given is by;

v =  L / t

v = 20 cm / 60 s

v = 0.333 cm / s

Volumetric flow rate of water is given by;

Q = Av

Q = (0.0177 cm²)(0.333 cm / s)

Q = 0.00589 cm³ /s

Therefore, the volumetric flow rate is 0.00589 cm³ /s

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

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