two waves are traveling through the a container ofnitrogen . the amplitude of the first wave is .3 cm and the amplitude of the second wave is .9 cm. what is true about the two waves?

a. the energy of the first wave is less than the second wave.

b. the energy of the first wave is greater than that second of the wave.

c. the speed of the first wave is greater than that of the second wave

d. the speed of the first wave is greater than that of the second wave.