In its search for flying insects, a bat uses an echolocating system based on pulses of high frequency sound. These pulses are 2.60 ms in duration, have a frequency of 50.0 kHz, and an intensity level of 120 dB at 1.25 m from the bat’s mouth. Assume the bat produces acoustic waves in a cone with a total angle of 32o . (a) What is the acoustic power of each pulse? (b) How much acoustic energy is there in each pulse? (c) What is the intensity level at a conical surface centered on the bat with radius equal to 6.50 m? (d) A June bug is located 6.5m from the bat. The effective cross-sectional area of the insect is 14.0 mm2 . How much of the acoustic power emitted by the bat strikes the insect? (e) Assume all the acoustic power intercepted by the June bug goes into the reflected wave which is hemispherical. What is the intensity level of the reflected wave at the bat’s ears?