Apipe carrying 20°c water has a diameter of 3.8 cm. estimate the maximum flow speed (cm/s) if the flow must be streamline. (the density of water is 1.00 x 10^3 kg/m^3.)

maximum flow speed is 5.278 cm/s

Explanation:

given data

temperature = 20°C

diameter  d = 3.8 cm

density of water ρ = 1 × 10³ kg/m³

to find out

maximum flow speed

solution

we have given steam line flow so it is laminar flow

and for laminar flow we know reynolds number is Re= 2000

so

Re =   ............1

here μ is dynamic viscosity = 0.001003 for 20°C for water

put all value in equation 1

Re =

2000 =

solve it we get v

v = 0.0527 m/s

so maximum flow speed is 5.278 cm/s

a sonic boom is a loud boom that breaks the sound barrier

explanation: