Calculate the intensity of the sound at r1. Calculate the sound intensity level at r2. Calculate the power of the sound source. How much energy per second is delivered to your eardrum from this sound wave at r1, if your eardrum has an area of 0.96 x 10-5 m2

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.