An internal combustion engine, with compression ratio of 12.5: 1, operates on the dual combustion cycle. 70 % of its total heat supply is taken in at constant volume and 30% at constant pressure. expansion and compression are adiabatic and heat is rejected at constant volume. the pressure limits are 100 kpa and 4600 kpa. ambient temperature is 18º c. r=0,288 kj/kg. k and cv=0,712 kj/kg. k calculate the ideal thermal efficiency of the cycle.

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed