Average Amplitude of Waves
from 2009 to 2011
A structural engineer is using this table to design a wall
to protect a city near the ocean.
How high should the engineer build the wall?
Average Amplitude
(meters)
50 meters
O 100 meters
150 meters
200 meters
2009
2010
Year
2011
2012

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.