5. You go to the refrigerator and put 8 ice cubes into your glass. You then go to the faucet and fill your cup
with water. Just then the doorbell rings. You put your glass down and go see who's at the door. It's your
neighbor Juanita and you shoot the breeze together for 45 minutes. After she leaves you go back to get your
glass of water and notice there are still a few ice cubes left that haven't melted. What is the temperature of
the glass of water and why?