Write generators below (a.-e. worth 3 pts each, f. worth 5 pts) that satisfy the following specifications. You may not use any of the generators in itertools to help write your generators. Remember that in Python 3.7, if a generator explicitly calls next and raises the StopIteration exception, you must handle it and then execute a return statement (which Python will translate into raising a StopIteration exception). (a) The running_count generator takes an iterable and a predicate function (taking one argument and returning a bool value) as parameters: it produces a running

To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.