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An inverted test tube partially filled with air floats in a plastic water-filled soft drink bottle as shown in Fig. P11.29. The amount of air in the tube has been adjusted so that it just floats. The bottle cap is securely fastened. A slight squeezing of the plastic bottle will cause the test tube to sink to the bottom of the bottle. Explain this phenomenon.
A level is set up midway between two wood stakes that are about 300 feet apart. The rod reading on Stake A is 9.65 ft and the reading on stake B is 4.23 ft. The level is then set up 6 feet in front of stake B.
Water flows through a horizotal 45 deg reducing bend with a 36 inch. diameter upstream and a 24 inch diameter downstream, at the rate of 20 cfs under a pressure of 15 psi at the upstream end of the bend. Neglecting head loss in the bend, calculate..
Determine the liquid detention time, loading rate, F/M ration (with an MLSS of 2350 mg/l), sludge age (with 5330 lb/day waste sludge Eff. SS= 20 mg/l. Will the sludge settle properly
Describe the given types of bonding agents found with clay minerals. a) hydrogen bond b) covalent bond c) van der walls forces d) james bond e) ward bonds f) war bonds.
Determine the deflection of the right end of the pointer and the maximum deflection of the beam.
Determine the relationship which governs the velocities of the three cylinders, and state the number of degrees of freedom. Express all velocities as positive down.
calculate the chord lenght between stations 75.00 and 75.00 on a circular curve with Da=5.5 degrees.
A sample of dry sand having a unit weight of 105 pcf and a specific gravity of 2.70 is placed outdoors. During a storm, the sample degree of saturation increased to 40% while its total volume did not change. Determine the total unit weight and wate..
Statistics indicate that the world population since World War II has been growing at the rate of 1.9% per year. Further, United Nations records indicate that the world population in 1975 was (approximately) 4 billion.
A fireman is standing on a hoist and sprays water at a fire. the fire is 35 ft in the x direction and 20ft downward in the y direction. the water flows at 65 ft/s. determine two possible angles theta at which this can be done. assume the angle below ..
Problem: A 24F-V4 Douglas Fir-Larch glulam is used to span 32 ft, carrying an ASD load combination (D+S). The load is uniform over a simple span, and the beam is laterally supported so that lateral torsional buckling is prevented.
The overhang beam has been fabricated with a projected arm BD on it. Draw the internal shear force, bending moment, and normal force diagrams for the beam ABC if it supports a load of 800 lb.
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