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A solid circular shaft of 40 mm diameter is to be replaced by a hollow circular tube. If the outside diameter of the tube is limited to 60 mm, what must be the thickness of the tube for the same linearly elastic material working at the same maximum stress? Determine the ratio of weights for the two shafts.
Management practices differ, depending on the diversity within the organization. In this assignment, you will research the demographics for your area or city and apply those demographics to business operations.
What is the reflectance loss in a 50% truncated CPC collector using silver mirrors if it has a 36° acceptance half-angle? What is the loss for an anodized aluminum reflector?
If a slider block C is fixed to the disk that has a constant counter clockwise angular velocity of 4 rad/sec, determine the angular velocity and angular acceleration of the slotted arm AB at the instant shown.
a particle is moving along a straight line with the acceleration a12t-3t12 fts2 where t is in seconds. determine the
biodiesel is produced from vegetable or animal oils. usually the glycerine in the oil is replaced by methanol. since
does the atmospheric pressure inside of a tube aproximately a half an inch in diameter cause resistance against an end
The 60W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of the air by 50Pa to maintain flow. The fan is located in a horizontal flow section whose diameter..
a voltmeter with a range of 0 to 100v reads 2v when the leads are shorted together. the manufacture claims an accuracy
an 8-kg iron casting at 550 degc is quenched in a tank containing 0.03 m3 of liquid water initially at a temperature of
A large fraction of the thermal energy generated in the engine of a car is rejected to the air by the radiator through the circulating water. Should the radiator be analyzed as a closed system or as an open system? Explain.
The power P required to drive a fan is believed to depend on density p, flow rate Q, impeller dia. D, and angular veloctiy w in Hz. Determine by dimensional analysis, the general expression for dependence of P on other variables.
an ordinary egg can be approximated as a 5.5-cm-diameter sphere. the egg is initially at a uniform temperature of 8c
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