Physics, 29.03.2021 17:50, Shaynele

Please i need help i don't understand and its 4 question the last one cut out it says "size of planet"

Please i need help i don't understand and its 4 question the last one cut out it says size of plan

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Physics, 22.06.2019 16:50, Walkman2092

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Physics, 22.06.2019 18:10, coryowens44

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)

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Physics, 22.06.2019 20:50, dorkygirl

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)

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Please i need help i don't understand and its 4 question the last one cut out it says "size of plane...