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

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50