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Air at 20oC at atmospheric pressure flows over a flat plate at a velocity of 3 m/s. if the plate is 1 m wide and 80oC,
calculate the following at x = 300 mm.
1. Hydrodynamic boundary layer thickness,
2. Thermal boundary layer thickness,
3. Local friction coefficient,
4. Average friction coefficient,
5. Local heat transfer coefficient
6. Average heat transfer coefficient,
7. Heat transfer.
in the senior year of a high school graduating class of 600 students 180 studied math 200 studied chemistry 240 studied
A 2-m^3 rigid tank contains refrigerant-134a vapor at 1.4 MPa, 180C. Determine the mass of the refrigerant in kilogram using:
The net power output of the overall power system.
A particle which movies in a two-dimensional curvilinear motion has coordinates in millimetres which vary with time t in seconds according to x=5t2 +4 and y=2t3 + 6. For time t =3s, determine the radius of curvature of the particle path and the magni..
The length of the cable between points A and B is 87 m, and the effective cable mass is 2 kg /m when the buoyancy of the cable is accounted for. Determine the tensions at both A and B.
a solid circular rod with a diameter of d 18mm. the bar is ade of an aluminum alloy that has an elastic modulus of e
The tube bank of a steam condenser consists of a square array of 400 tubes, each of diameter
A double-wall heat exchanger is used to transfer heat between liquids flowing through semicircular copper tubes. Each tube has a wall thickness of t = 3 mm and an inner radius of ri = 20 mm, and good contact is maintained at the plane surfaces by ..
Compute the first energy level (in eV) for a particle trapped in a 0.1 nm region. Assume the mass of the particle is equal to 0.511 MeV/c^2
steel reinforcement rods had been pulled to a thickness below regulatory standards. what is the effect of this
design a compound gear train that yields a train value of 3001. from interference considerations no pinion shouicl have
a pressurized tank is nominally at 205 degree c. the density determination must be within 0.5 to be useful. if the
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