The uniform rectangular stone block with b=1.2mand h=0.9mis released from rest with its center of mass Gdirectly above the supporting corner. Determine the angular velocity ′of the block about the corner Aimmediately after impact assuming that Aremains in contact with the ground. Also assume that contact occurs at the corners only and that no slipping takes place. What fraction |ΔE|/Eof energy is lost in the impact?

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.