You are creating a metal border of uniform width for a wall mirror that is 20 inches by 24 inches. you have 416 square inches of metal to use. write and solve an equation to find the border's width. does doubling the width require exactly twice as much metal? explain.

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.