Most firms focus on a target debt-to-capital ratio range as opposed to a single number. true or false?

Where are subduction zones most likely to form

Gold star co. and silver star co. both manage their cash flows according to the miller orr model. gold star's daily cash flow is controlled between $100,000 and $200,000, whereas silver star's daily cash flow is controlled between $150,000 and $300,000. the annual interest rates gold star and silver star can get are 10 percent and 9 percent, respectively, and the costs per transaction of trading securities are $2,000 and $2,500, respectively. a. what are their respective target cash balances? b. which firm's daily cash flow is more volatile?

Refrigerant 22 in a refrigeration system enters one side of a counterflow heat exchanger at 12 bar, 28 c. the refrigerant exits at 12 bar, 20 c. a separate stream of r-22 enters the other side of the heat exchanger as saturated vapor at 2 bar and exits as superheated vapor at 2 bar. the mass flow rates of the two streams are equal. stray heat transfer from the heat exchanger to its surroundings and kinetic and potential energy effects are negligible. determine the entropy production in the heat exchanger, in kj/k per kg of refrigerant flowing. what gives rise to the entropy production in this application?