Suppose the keys 3, 4, 45, 21, 92, 12 are inserted into a BST in this order. What is the preorder traversal of the elements? a) 3 412 21 45 92 b) 34 45 21 12 92 c) 12 21 92 45 4 3 d) 445 2112 92 3 e) 4 21 12 92 45 3 7

An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling