A bat at rest sends out ultrasonic sound waves at 58.0 kHz and receives them returned from an object moving directly away from it at 50.0 m/s. Part A What is the received sound frequency?

One end of each of two identical strings is attached to a wall. Each string is being pulled equally tight by someone at the other end. A transverse pulse is sent traveling along string A. A bit later an identical pulse is sent traveling along string B. What, if anything, can be done to make the pulse on string B catch up with and pass the pulse on string A? O Pull harder on string A. O Pull harder on string B. O Nothing can be done.

Part 1: Trains with passengers A railroad train is traveling at 34.2 m/s in still air. The frequency of the note emitted by the train whistle is 220 Hz. The air temperature is -9°C. A.) What frequency is heard by a passenger on a train moving in the opposite direction to the first at 35.8 m/s and approaching the first? B.) What frequency is heard by a passenger on a train moving in the opposite direction to the first at 35.8 m/s and receding from the first?

During takeoff, the sound intensity level of a jet engine is 150 dB at a distance of 32 m. Part A What is the sound intensity level at a distance of 1.0 km? Express your answer with the appropriate units.

An osprey's call is a distinct whistle at 2200 Hz. An osprey calls while diving at you to drive you away from its nest. You hear the call at 2300 Hz. Part A How fast is the osprey approaching? Express your answer with the appropriate units. v= μA Value Units ?

You stand at x = 0 m, listening to a sound that is emitted at frequency fs. as shown the frequency you hear during a four-second interval. Which of the following describes the motion of the sound source?A. It moves from left to right and passes you at t = 2 s.B. It moves from right to left and passes you at t = 2 s.C. It moves toward you but doesn’t reach you. It then reverses direction at t = 2 s.D. It moves away from you until t = 2 s. It then reverses direction and moves toward you but doesn’t reach you.

A plane flies directly over you at a constant velocity and an altitude of 750 m. You hear a sonic boom later, after the plane has traveled a distance of 1500 m. What is the Mach number of the plane?

A train whistle is heard at 250 Hz as the train approaches town. The train cuts its speed in half as it nears the station, and the sound of the whistle is then 240 Hz. Part A What is the speed of the train before slowing down? Express your answer to two significant figures and include the appropriate units. V1 = Part B Value v2 = What is the speed of the train after slowing down? Express your answer to two significant figures and include the appropriate units. LO μA Units Value ? Units ?

The Wanamaker Pipe Organ in Macy's Center City department store in Philadelphia is the largest working pipe organ in the world. The organ occupies a seven- story hall, and has the longest pipe length of 9.75 m that occupies four floors and can be used as either an open or a closed pipe. Assume that the speed of sound is 345 m/s. a. Calculate the lowest fundamental frequency for the Wanamaker Pipe Organ. b. The highest note on an 88-key piano is 4186 Hz. What would be the length of a pipe open on one end that produced this as a fundamental frequency?

An ethernet cable is 3.90 m long and has a mass of 0.210 kg. A transverse pulse is produced by plucking one end of the taut cable. The pulse makes four trips down and back along the cable in 0.810 s. What is the tension in the cable?N