The aircraft A with radar detection equipment is flying horizontally at an altitude of 12.2 km and is increasing its speed at the rate of 1.76 m/s each second. Its radar locks onto an aircraft B flying in the same direction and in the same vertical plane at an altitude of 15.3 km. If A has a speed of 1110 km/h at the instant when = 23°, determine the values of and at this same instant if B has a constant speed of 1670 km/h.

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

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