Ametal hoop with a mass of 2 kg and a radius of 0.5 m is released from rest on the incline. if the coefficients of static and kinetic friction are hs = 0.20 and 4x = 0.15, (a) determine the angular acceleration of the hoop, (b) determine the acceleration of point g, (c) determine the friction between the hoop and the incline, repeat parts (a), (b), (c), (d), (e) if the inclined angle is 30°.

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.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

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