You buy a super cool dog whistle that emits sound at a frequency of 19 000 Hz. Unfortunately when you blow it you notice no response from your dog, so wonder if the whistle is broken. From experimenting during your sound wave lab you know that you can hear up to a frequency of 18 500 Hz. You give the whistle to a friend of yours and ask him to blow it while riding on a bike to see if you can hear it.
Please show all math steps and how you decided on the formula to use to the solve the problem. Thanks!
You buy a super cool dog whistle that emits sound at a frequency of 19 000...
A siren, attached to a parked car, emits a sound with frequency 960 Hz. You are driving in your car, either straight towards or straight away from the parked car, and hear a frequency of 1069 Hz. Are you moving towards or away from the car? towards away How fast must you be moving? (Give your answer rounded to two sigfigs.)40
A whistle of frequency 310.0 Hz moves away from you at a speed of 19.0 m/s. Assume the speed of sound in air is 343.0 m/s. 1.)What is the frequency you hear? 2.) What is the frequency you hear as the whistle moves toward you at the same speed?
A whistle of frequency 410.0 Hz moves away from you at a speed of 11.0 m/s. What is the frequency you hear? Assume the speed of sound in air is 343.0 m/s. Submit Answer Tries 0/99 What is the frequency you hear as the whistle moves toward you at the same speed? Submit Answe Tries 0/99
A whistle of frequency 410.0 Hz moves away from you at a speed of 11.0 m/s. What is the frequency you hear? Assume the speed of sound in air is 343.0 m/s. Submit Answer Tries 0/99 What is the frequency you hear as the whistle moves toward you at the same speed? Submit Answe Tries 0/99
A friend of yours is loudly singing a single note at 400 Hz while racing toward you at 26.8 m/s on a day when the speed of sound is 347 m/s . What frequency do you hear? What frequency does your friend hear if you suddenly start singing at 400 Hz ?
Television sets (particularly older models) produce a ``whistle'' sound at about 15900 Hz (this is the frequency that the electron beam sweeps across the face of the screen). This sound is audible to most youngsters and adults who haven't lost their high-frequency hearing. Imagine that a TV set is on (with the ``mute'' on) in your sister's bedroom as you walk by in the hallway. If your sister's door is ajar, leaving an opening 4 cm wide, and your ear...
phons 100 9 80 60 A 40 20 20 10k 1000 100 10 Frequency Hz) a) At approximately what frequency is the human ear most sensitive? How can you tell? b) If you heard a 300-Hz tone with a sound level of 60 dB, approximately how many phons would you perceive? toward you with a speed v, starting a distance of 1 km away att 0. If the train moves very slowly (that is, v is extremely small compared to...
For testing purposes, a musical instrument manufacturing company creates a device so that when you blow into one end with your instrument, sound comes out the other end in opposite directions. A sound technician uses a whistle and generates sound waves with a frequency of 226 Hz. The waves travel in opposite directions in a sound studio, are reflected by end walls, and return. The studio is 42.0 m long and the whistle is located 14.0 m from one end....
need help with questions 3, 4, and 5 COTO 3. While you are sounding a tone on a toy whistle, you notice a friend running toward you. If you want her to hear the same frequency that you hear even though she is approaching, you must a. stay put. (SH) 2001 SS18E b. run towards her at the same speed. odc. run away from her at the same speed. o contou svoda 01 d. stay put and play a note...
Rush Inuit is an impulsive, fly-by-the-seat-of-his-pants kind of guy. His best friend, Stu Earley, is the exact opposite – cautious and reluctant. The two are recent UNCG graduates who roomed together all … ahem … eight years. You know who they are even though they graduated last year because everyone on campus knows Rush and Stu – they’re legends on the social scene. To make ends meet during college, Rush and Stu organized fun trips to exciting destinations and charged...