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Long cylindrical steel rods (p= 7833 kg/m3 and cp 0.465 kJ/kg · °C) of 10-cm diameter are heat-treated by drawing them at a velocity of 3 m/min through an oven maintained at 900°C. If the rods enter the oven at 30°C and leave at a mean temperature of 700°C, determine the rate of heat transfer to the rods in the oven.
A delivery company accepts only rectangular boxes the sum of whose length and girth (perimeter of a cross section) are equal to 108cm. Find the dimensions of an acceptable box of a largest area.
why the prediction are less than the observed result of connection in tension experiment?
For a concrete column that is part of a braced frame, if the column is square, tied, 18 inches per side, 16 feet long, classify the column as slender or non slender
At Point A in a pipeline carrying water (? = 62.4 lb/ft3) the diameter is 3.0 ft, the pressure is 11 psi, and the velocity 4 ft/s. At Point B, 6 ft higher than Point A, the diameter is 2.5 ft and the pressure is 4 psi
The mass of each pulley of the system is 50 kg, and mass of the suspended object A is 160 kg. Determine the force necessary for the system to be in equilibrium? Be sure to draw complete free body diagram(s) for full credit.
a simple curve has a central angle of 42degreess. a point y is located 24m from the vertex and has a perpendicular
The length of the pipeline in the building is 60 m, the water temperature is 20.C, and the water pressure on the top floor must be at least 150 kPa. Will a booster pump be required for the building If so, what power must be supplied by the pump
How did Dmitri Mendeleev come up with the periodic table?
WATER FLOWS IN A PIPE AT 3 m/s A valve at the end of the pipe is suddenly closed. determine the pressure rise in the pipe.
The following observations were made in an experiment for determining of dielectric strength of transformer oil. Determine the power law equation:
The cross sectional dimensions of a 4-ft-long wood member at 30% moisture content is 1.5 in. x 7.5 in., and its weight is 11 lb. At oven-dry condition, its dimensions and weight are 1.35 in x 6.8 in., and 10.2, respectively. What is its specific g..
Determine the normal stress in a soccer ball if the internal pressure is 110 kPa, the outside diameter is 220mm and the wall thickness is 3mm .
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