Refrigerant-134a is the working fluid in an ideal vapor-compression refrigeration cycle that operates between 0.15 MPa and 0.8 MPa. Saturated vapor enters the compressor at T1 and saturated liquid leaves the condenser at T3. The mass flow rate of the refrigerant is mr = 0.05 kg/s. Determine: (a) the compressor power, in kW, (b) the refrigeration capacity, in kW, (c) the coefficient of performance, and (d) the coefficient performance of a Carnot refrigeration cycle operating between T1 and ТЗ.

Four consumers are willing to pay these amounts for haircuts, and four haircutting businesses have these costs: Consumers' Willingness to Pay Firms' Costs Edison: $45 Firm A: $40 Kevin: $25 Firm B: $20 Maria: $15 Hilary: $35 Firm C: $10 Firm D: $30 Each firm has the capacity to produce only one haircut. For efficiency, should be given. Which businesses should cut hair? Check all that apply. Firm A Firm B Firm C Firm D Which consumers should have their hair cut? Check all that apply. Edison Hilary Kevin Maria The maximum possible total surplus is $

Handwriting not allow please And give me complete answer