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A round casting is 0. 2 m in diameter and 1 m in length. Another casting of the same metal is elliptical in cross section, with a major-to-minor axis ratio of 2, and has the same length and cross sectional area as the round casting. Both Pieces are cast under the same condition. what is the difference in the solidification times of the two castings?
q1. 1.5 kg of oxygen n2 and 0.15 kg of helium he2 are separated by a partition in a vessel.nbsp the nitrogen is at 5
A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
A heat pump uses refrigerant-134a as the working fluid in an ideal vapour-compression refrigeration cycle between 0.14 and 0.8 MPa. The refrigerant leaves the compressor at a temperature of 40° C. Determine the pressure, temperature and enthalpy a..
determine the design stress for bolts in a cylinder cover where the load is fluctuating due to gasnbsppressure. the
Calculate energy savings, implementation costs and simple payback. You should be able to find some tips and calculations from the text book.
specifications for steel plate to be used in the construction of a certain bridge call for the minimum yield to be
a 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lbft. the upper
The spool has a mass of 75 kg and a radius of gyration . It rests on the inclined surface for which the coefficient of kinetic friction is . If the spool is released from rest and slips at A, determine the initial tension in the cord and the angul..
an airplane used to drop water on brushfires id flying horizontally in a straight line at 180 mih at an altitude of
determine the actual and minimum theoretical operating costs, each in $/day.
what is the use of dimentionsless numbers, and why the temperature is max on gas turbine blade tip.
Also, compare with the efficiency of an Otto cycle operating with the same maximum pressure.
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