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1. A meteorite melts and burns up at a temperature of 5500 R. If it hits air at 0.75 lbf/ in.2, 90 R, what velocity should it have to reach this temperature?
2. A jet engine receives a flow of 500 ft/s air at 10 lbf/in.2, 40 F, inlet area of 7 ft2 with an exit at 1500 ft/s, 10 lbf/in.2, 1400 R. Find the mass flow rate and thrust.
It is proposed to estimate the seepage flow rate through the foundation soil using the flow net sketching technique. For this purpose, calculate the horizontal scale factor and effective hydraulic conductivity of the foundation soil.
A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.
Calculate properties of plane cross sections including centroids and area moments of inertia - Explain the implications of the second law to engineering systems
The van seen from the rear is traveling at a speed v around a turn of mean radius r banked inward at an angle θ. The effective coefficient of friction between the tires and the road is μ Determine (a) the proper bank angle for a given v to elimina..
A certain fluidized-bed combustion vessel has an investigation cost of $ 100,000, a life of 10 years, and negligible market (resale) value. Annual costs of materials, maintenance
Place the scientific mass on the inclined plane and string over the pulley. Using a force-measuring device, pull the string and determine the force needed to obtain static equilibrium.
A 12inx1inx3in ASTM 36 steel bar is loaded with an axial load of 90,000lbs and a transversal load of 288,000lbs (force applied perpendicular to the 1in side) The proportionality limit is 34,000psi.
(a) How is raw pig iron extracted from iron oxide ores (b) Write a typical chemical reaction for the reduction of iron oxide (Fe2O3) by carbon monoxide to produce iron.
Compare the strain energy developed in each case, and then explain which design is better for resisting an axial shock or impact load.
the fixture ac is designed with a screw adjustment to regulate the height of the 900 n load supported by the roller
A radar device is installed at a location on the roadside to measure instantaneous speeds of vehicles passing that location. The initial four vehicles' speeds are listed. Calculate the space-mean speed of these four vehicles.
if the mass of liquid to vapor in a mixture of saturated liquid and vapor water is 0.8, what is the quality of the mixture
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