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nittps://www.webassignnel/web/Studen/ Assignment responses/submit.dep 59salags-autosaven question3470798_0 TUIs usigiTCTG you sum UITV wy quum pur. TC Tummer un suwimSIOITTCITOTTg To Carir qurum pum corny Chung" you uvITTIL UT CTTUNG LICUITOVCI. Assignment Scoring Your last submission is used for your score. 11. [0/2 Points] DETAILS PREVIOUS ANSWERS MY NOTES PRACTICE ANOTHER A rescue plane flies horizontally at a constant speed searching for a disabled boat. When the plane is directly above the boat, the boat's crew blows a loud horn. By the time the plane's sound detector perceives the horn's sound, the plane has traveled a distance equal to one-third its altitude above the ocean. (a) If it takes the sound 2.04 s to reach the plane, determine the speed of the plane. Take the speed of sound to be 343 m/s. 100.2577 x Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. m/s (b) What is its altitude? 204.53 x Your response differs from the correct answer by more than 10%. Double check your calculations. m 2. [-13 Points] DETAILS MY NOTES PRACTICE ANOTHER An ultrasonic tape measure uses frequencies above 20 MHz to determine dimensions of structures such as buildings. It does so by emitting a pulse of ultrasound into air and then measuring the time interval for an echo to return from a reflecting surface whose distance away is to be measured. The distance is displayed as a digital read-out. A tape measure emits a pulse of ultrasound with a frequency of 24.5 MHz. (a) What is the distance to an object from which the echo pulse returns after 24 ms when the air temperature is 26°C? (b) What should be the duration of the emitted pulse if it is to include 10 cycles of the ultrasonic wave? Âus (c) What is the spatial length of such a pulse? mm 3 Type here to search DI W C n 1- USD... (8) 8:16 AM 4/15/2022 IS 23