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Air at 0.1 kg/s is to be cooled from 140 C to 40 C in a heat exchanger. The coolant water is at 20C constant throughout the heat exchanger. The convective heat transfer coefficients are 100 W/m2K and 500 w/m2K on the air and water sides respectively. The air and water are separated by material 100mm thick, thermal conductivity 10 W/mK and the surface area is 4m2 per meter length of the unit. Calculate the overall heat transfer coefficient between the air and the water (answer in W/m^2K).
the girl at C stands pulls the rope horizontally at a constant speed of 6 ft/s. determine how fast the boat approcahes the pier at the instant the rope lenght AB is 50 ft.
A horizontally oriented copper rod length of l=1m is rotated about avertical axis passing through its middle. what is number of rps at wich this rod ruptures?
a first class lever in static equilibrium has a 50lb resistance force and a 15lb effort force. the levers effort force is located 4ft from the fulcrum. what is the actual mechanical advantage of the system?
This problem came from the "kinematics of particles" part holding the "Determination of the motion of a particle" section, so use the formula relating to this section of this part.
what are the properties of petrol that it make particularly suitable for the use as fuel in a motor vehicle.
The hull of a boat has a volume of 150 m3, and the total mass of the boat when empty is 8560 kg. Determine how much load this boat can carry without sinking (a) in a lake and (b) in seawater with specific gravity of 1.03.
Gear A rotates with an angular velocity of 100 rpm clockwise. Knowing that the angular velocity of arm AB is 50 rpm counterclockwise, determine the corresponding angular velocity of gear B.
you are an industrial hygienist for a large distributor of industrial compressed gases who was evacuated to baton rouge
determine the stresses and the rotation of the body at x= 0.050m and y=0.020m is the displacement field compatible?
Beam deflection at corner through centroid, Sometimes the term centroid throws me for a loop. So, how would I set this problem up?
a 0.4 w cylindrical electronic component with a diameter of 0.3 cm and length 1.8 cm is mounted horizontally on a
find the best fit Gaussian Curve through the data and plot the data and curve on the same graph.
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