Homework Statement
In the attached file.
Homework Equations
P1/rhoe+v1^2/2+gh1=P2/rhoe+v2^2/2+gh2
The Attempt at a Solution
I do not know how to begin it; however, I think part(iii) is the same as part (iv)[/B]
Homework Statement
Water flowing at the rate 3.5 kg s−1 through a tube with an inner diameter of 2 cm is to be heated from 20 to 40◦C. If the tube wall temperature is maintained at 90◦C, determine the length of the tube required.
Homework Equations
Q'=Cp*m*(DeltaT)
Q=2*pi*r*L*Q'
The Attempt...