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A fire truck has its hose connected to a hydrant where the pressure is 7x10^4 Pa gage. The hose then connects up to a pump run by the engine of the fire truck. From here there extends hose to a fire fighter who, while crouching, is aiming the water at a 60 degree angle with the ground to enter a window on the third floor 13 m above the nozzle at the end of the hose. As the water goes through the window, it is moving parallel to the ground. The total length of the hose is 65 m with 200-mm diameter. The exit diameter of the nozzle is 100 mm. Take e/D for the hose as 0.0001. What power is needed from the pump on the water? Take the nozzle exit to have the same elevation as the hydrant outlet. Neglect minor losses. Take the kinematic velocity to be 0.113x10^-5 m^2/s.
The axis of the three-hinged arch ABC is a parabola with vertex at B. Knowing that P=109.2 kips and Q=72.8 kips, determine (a) the components of the reaction at C, (b) the components of the force exerted at B on segment AB.
Calculate the primary consolidation settlement for the CH layer, assuming that it is normally consolidated with a water content of 70% and a compression index of 0.25.
A ferrari with 808 hp has a max. speed of 211 mph at 6,300 rpm. the Ferrari weighs 4,155 lb/ton and is operated over a smooth concrete road with a rolling resistance of 40 lb/ton and a slope of 3%.
the engine develops a maximum torque of 210ft-lb at 3600 rev/min. what is the maximum grade this vehicle could ascend, on a paved surface, while the engine is developing maximum torque (assume that the available tractive effort is the engine-gener..
The position of a particle moving along an x axis is given by x = 17t2 - 5.0t3, where x is in meters and t is in seconds. (a) Determine the position, velocity, and acceleration of the particle at t = 3.0 s. x = m v = m/s a = m/s2
The "U"-tube manometer containing mercury of density 13600 kg/cubic meters is used to measure the pressure drop along a horizontal pipe. If the fluid in the pipe has a relative density of 0.8 and the manometer reading is 0.6 meters
a simple horizontal curve has a central angle of 35 degrees-40 minutes-40 seconds, and a degree of cure (arc definiton) of 5 degrees -00 minutes-00 seconds.
A well-insulated rigid vessel of volume 0.2 m^3 is divided into two equal compartments by thin diaphragm, as illustrated in the accompanying figure. One of the compartments is a vacuum
A 1.10% Carbon hypoeutectoid plain carbon steel is slowly cooled from 900 degrees C to just slighty below 723 degrees C calculate the weight percent proeutectoid cementite present in this steel.
The first alternative is deep-well pumping at an annual cost of $10500. The second alternative is to instal an 18 inch diameter pipeline from a local surface reservoir at a first cost of $25000 and an annual pumping cost of $7000.
If the systems will reduce insurance claims by $100,000 two years from now, how much should the company be willing to spend now, it is uses an interest rat of 12% per year
A copper wire breaks under an engineering stress of 43x10^3 psi. Its ductility is 77%it reduction area. Calculate the true stress (in psi) for fracture in the neck region.
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