b. How big do you estimate in volume was the iceberg that sank the Titanic? BONUS QUESTION: What might have been the mass of the iceberg? 17. A football goal post is 9.144 m and constructed of aluminum. The coldest day in San Jose was 32"F(0"C) on February 24. The hottest day of the year was June 23 at 98 F(36.6"C). What was the change in height of the goal post between the coldest and hottest days of 2018? The coefficient of linear expansion of aluminum is 23.8x10*/*C