Write a method stutter that takes an arraylist of strings and an integer k as parameters and that replaces every string with k copies of that string. for example, if the list stores the values ["how", "are", "you? "] before the method is called and k is 4, it should store the values ["how", "how", "how", "how", "are", "are", "are", "are", "you? ", "you? ", "you? ", "you? "] after the method finishes executing. if k is 0 or negative, the list should be empty after the call.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

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.