As you drive at a speed of 15.0 m/s an ambulance approaches you from behind with its siren blaring at a frequency that you hear as 1022 Hz. After the ambulance has passed you the siren now appears to be 981 Hz. If both you and the ambulance travel at constant speed, how fast was the ambulance traveling? Assume the speed of sound is 340 m/s. m/s

There is a tube of length 1.0 m with one end closed. You clapped your hand at the mouth of the tube once. The echo of the clap came back after 6.0 milliseconds. What is the velocity of sound in the tube ? 330 m/s O 320 m/s 290 m/s O 170 m/s

A truck travelling west at 60 m/s sounds it's 440 hz horn as it passes an observer riding a bike traveling east at 20 m/s.  What frequency does the observer hear as the car approaches?

A jogger hears a car alarm and decides to investigate. While running toward the car, she hears an alarm frequency of 872.10 Hz. After passing the car, she hears the alarm at a frequency of 850.10 Hz. If the speed of sound is 343 m/s. ¹) Calculate the speed of the jogger. (Express your answer to three significant figures.) Submit m S

An ambulance with a siren emitting a whine at 1730 Hz overtakes and passes a cyclist pedaling a bike at 2.60 m/s. After being passed, the cyclist hears a frequency of 1722 Hz. How fast is the ambulance moving? (Take the speed of sound in air to be 343 m/s.) Number i Units

Initially at rest H.

A LaGuardia Physics Professor drops a stone into a well. How deep is the well if the Professor hears the sound from the stone hitting the bottom of the well 1.9 s later? Neglect the air resistance and take the free fall acceleration g = 9.81 m/s². The air temperature is T = 24.5°C. Hint: g.t² Try to set the following equations: (1) for the stone to fall down, h = -; (2) for the sound to travel 2 back to the surface, h = c · t2; and (3) for the delay time, t = t₁ + t2. You have 3 equations and 3 unknown variables: t₁, t2, and h. And, of course, you will need the speed of sound at the given air temperature: c = (331.3 +0.606 · T) m/s. The depth of the well, h = 17.707 X Units m How long did it take for the sound to travel back? The time, ts = Units Select an answer ✓

An ambulance with a siren emitting a whine at 1570 Hz overtakes and passes a cyclist pedaling a bike at 2.54 m/s. After being passed, the cyclist hears a frequency of 1560 Hz. How fast is the ambulance moving? (Take the speed of sound in air to be 343 m/s.) Number i Units

Back when I was a kid, I loved to play with my Hot Wheels. Hot Wheels are miniature metal cars that race down lengths of flexible track. The track comes in segments that can be connected together. One thing you can do is make the cars Loop the Loop, as shown in the figure above. Starting at a height, h, the cars race down the track, traverse a circular loop of radius, R, without falling down at the top of the loop, and then continue racing along a section of level track. If the loop is 9 inches in diameter, what is the minimum height, h, from which the cars can start and still loop the loop without falling down at the top? Neglect friction and air resistance.

A stone is dropped into a mine shaft 250 m deep. How many seconds pass before the stone is heard to strike the bottom of the shaft?