Problem 3 (28 Marks) It is winter with a temperature of 15.0 C and Jane needs to make a cup of tea. She uses her old 2000 W kettle, which is only 70.0 % efficient. She boils 1.50 L of water. |. How long does it take for Jane to boil the water? (7 marks) II. To make the tea, she adds 10.0 g of cold milk, at 4.00 C from the fridge to a cup containing 90.0 ml of hot water from the kettle. What is the maximum final temperature at which she can sip her cup of tea. Please list your assumptions. (10 marks} I\". What would be the cost of this cup of tea, given that the charge of an electricity unit (KWh) is AUD$0.274? {5 marks) IV. Name at least 3 reasons, why the kettle would only achieve such efciency? (6 marks}