Which statement is true for the relationship between transported energy and the amplitude of the sound waves? a. with an increase in the amplitude, the energy of the sound decreases b. with an increase in the amplitude, the energy of the sound increases. c. with an increase in the amplitude, there is no change in the energy of the sound d. with an increase in the amplitude, the energy of the sound becomes zero.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.