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Covariant and Contravariant Components
(a) Express the scalar product of two vectors in terms of their covariant and contravariant components.
(b) Find the vector product of two vectors in an oblique coordinate system.
Put together a team of five students from your class. Using the 10-stage design process, have your team develop a carrying mechanism for Rollerblades and/or your shoes when one is not in use.
Design a four-stroke cycle for an SI engine using crankcase compression. Draw schematics of the six basic processes: intake, compression, combustion, expansion, blowdown, and exhaust. Describe fully the intake of air, fuel, and oil.
a regenerative steam cycle operates between the limits of 80 bar 540oc and 0.05 bar. if only one extraction from the
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Determine the required force F applied to the handle at A and the magnitude of the pin reaction at O. Note that the plunger passes through a vertically-elon- gated hole in the handle at B, so that negligible vertical force is transmitted there.
an aqueous homogeneous reactor is composed of a homogeneous mixture of uranium nitrite uo2no32 2.81 gcm3 and heavy
Ammonia enters a valve as saturated liquid at 9 bar and undergoes a throttling process to a pressure of 2 bar. Determine the rate of entropy production per unit mass of ammonia flowing, in kW/(kg·K). If the valve were replaced by a power-recovery tu..
The driving sheave has a diameter of 155 mm, the driven belt 300 mm. The belt selected should be close to a 2.3 m pitch length as possible. Select a satisfactory belt.
A rectangular channel with a width of 6.0 feet conveys a discharge of 115 cfs. If the depth of flow is 3.0 feet, what is the velocity? What is the Froude num- ber? Is the flow subcritical or supercritical?
The spring is compressed to solid length by tightening the nut with a power wrench. The trigger pin is inserted through the bottom cap and into the groove to secure the gun in the loaded position. The nut is then backed up all the way and the trig..
1 current airbag regulations specify that they must only pass a test designed to protect a 175 pound male who is not
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