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A sprue is 12 inches long and has a diameter of 5 inches at the top, where the metal is poured. The molten metal level in the pouring basin is taken as 3 inches from the top of the sprue for design purposes. If a flow rate of 40 in3/s is to be achieved, what should be the diameter of the bottom of the sprue? Will the sprue aspirate? Explain.
a secondary settling tank is to be designed for a municipal wastewater treatment facility. the influent tss is 1000 mgl
an old wooden telephone pole with a single cross member was blown off center during a recent storm. to temporarily
suppose the past data indicates that the probability of a fluorescent light produced from a production line has a
A 10 kg mass undergoes a process. In this process it transfers 2 kJ of work to its surroundings; it increases in elevation by 50 m, and increases its velocity from 15 m/s to 30 m/s. Its specific internal energy decreases by 5 kJ/kg. For this process ..
A four-stroke engine has a total displacement volume of 10L, 125mm bore and 16.3:1 compression ratio. The engine produces a maximum of 210 kW at 2100 RPM. The intake air is at 45 degrees C and 22.5 g/s of air flow into each cylinder. Calculate the vo..
the a-36 steel axle is made from tubes ab and cd and a solid section bc. it is supported on smooth bearings that allow
A satellite is in Earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. What is the semi-major axis of the orbit? b. What is the eccentricity? c. If the true anomaly is 160 degrees, what is the satellite's ..
at the beginning of the compression stroke the volume of a certain diesel engine cylin-der is 1.000 liter and it is
a platform of weight 200 lb supported by two springs each of constant k 250 lbin. is subjected to a periodic force of
a 2.5 pound block b is moving with a velocity v06 fts as it hits a 1.5 pound sphere a which is at rest hanging from a
on a cold winters day it is 30degf outside. yet the temperature of the outside surface of the mechanical engineering
the lowest temperature that has been achieved is about 1 times 10-6 k. to achieve this an additional stage of cooling
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