By comparing the frequency of a received echo with the known frequency of the emitted sound, SONAR units on submarines can determine the locations and velocities of other ships. Suppose a submarine that is virtually at rest emits a pulse of sound at a frequency f through water at the speed of sound v. What would be the frequency detected by a fast surface vessel, receeding at a speed of 0.08 v?

Q: The Mach number of an aircraft that travels with a speed of 300 m / s in air at 18 ° C while it…

A: Speed of aircraft (v) = 300 m/s Temperature = 18 degree C

Q: What is the speed of sound (in feet per second) on a hot day with a temperature of 108°F?

A:

Q: You encounter a moving walkway that is 75 mm long and has a speed of 1.9 m/sm/s relative to the…

A: Given value--- speed of walkway = 1.9 m/s. distance = 75 m. We have to find --- How long would it…

Q: In which of the following situations is the Doppler effect absent? a. The source and the observer…

A: The Doppler effect ( change in frequency) can be observed when a relative position change or…

Q: Explain and show complete solution with given. Label the formulas used.

A: Given: Velocity of train, us =40.0 m/s Frequency of sound emitted by train, fs=5.00×102 Hz…

Q: A speeder tries to explain to the police that the yellow warning lights she was approaching on the…

A:

Q: see a bolt of lightening and 4 seconds later we hear the thunderclap. if the speed in the air is…

A:

Q: at 150 Hz?

A:

Q: A 20.00 cm long piece of copper (B 51 x 10) at 0°C is placed in contact with a 30.00 cm aluminum (B=…

A: Given information:Initial length of copper (Lc) = 20 cm = 0.2 mThermal expansion coefficient of…

Q: Use the Doppler equation for a moving source to calculate the observed frequency for a 250.-Hz…

A:

Q: A spaceship is approaching a space station at a speed of 1.8 × 105 m/s. The space station has a…

A: Consider a spaceship is approaching the space station with speed v and a beacon in the space station…

Q: If a sound with frequency f, is produced by a source traveling along a line with speed ve and an…

A: Solution : Here, you have to apply Doppler's effect to find the perceived frequency and the rate of…

Q: 1) Two observers A on earth and B in a spacecraft with a speed of 2 x 10^8 m/s both people match…

A:

Q: How much faster does sound travel on a hot summer day, 40 °C, than on the coldest winter day, -40…

A:

Q: Two cars A & B are travelling away from each other and blowing their horns. You are sitting in car B…

A:

Q: Your friend waves as she flies by you in her rocket. You measure her speed to be .89 c. She measures…

A: Required : Speed measured by the friend.

Q: You place your ear onto a steel railroad track and hear the sound of a distant train through the…

A: Convert the temperature from degree centigrade to Kelvin

Q: A fire truck emits a sound with frequency of 775Hz a. What is the frequency detected by stationary…

A: Doppler effect is the change in frequency of a wave due to relative motion of the observer and the…

Q: The time required for a sound wave (v-340 m/s) to travel 20m at a frequency of 512 is

A: given ,  For a sound wave , speed , v = 340 m/s traveled distance , x = 20 m Frequency , f = 512 Hz…

Q: The star of a distant solar system explodes as a supernova. At the moment of the explosion, an…

A: Given : Distance of space ship from the supernova, d = 15 Au = 2.244 x 1012 m Speed of Shockwave, v…

Q: By comparing the frequency of a received echo with the known frequency of the emitted sound, SONAR…

A: The submarine at rest is capable of generating high-frequency pulses (SONAR) that can be detected by…

Q: An ambulance passes by a stationary observer releasing its siren at a frequency of 479Hz. The…

A: Given Data : The frequency of the siren is given as fs = 479 Hz. The difference between the…

Q: In a television program, a young actor singing at a frequency of 1,200 Hz is approaching a lady at…

A: When there is relative motion between source of sound and listener, the frequency of the sound…

Q: A tourist at a rim of a canyon yells "hello!" toward the opposite side. She hears the echo "hello"…

A: Data  we have Speed of sound,v=340m/s time required for echo to travel,t=4s To find d=?

Q: A fire truck emits a sound with the frequency of 775Hz.(a) what is the frequency detected by a…

A: Given data: Frequency of source is, fs=775 Hz. Speed of source is, v=45 m/s Speed of sound at 20∘C…

Q: The temperature is 220 C and a car is honking its horn at a frequency of 450 Hz. You perceive a…

A: This problem is related to motion. (a) According to given data the apparent frequency(500 hz) is…

Q: A lighting is observed, followed by thunder 2.55 seconds later. If speed of sound in air is 343 m/s,…

A: Thunder is heard after striking of light . Speed of sound in air = 343  Thunder sound is heard after…

Q: spaceship is approaching a space station at a speed of 1.60 × 105 m/s. The space station has a…

A:

Q: A stationary person hears a 251 Hz signal coming from a UFO that is moving toward the person. If the…

A:

Q: Question 2 If the speed of sound in air at 0 °C is 331 m/s. What will be the speed of sound in air…

A: Velocity of sound depends on temperature directly ie if temperature increases ,speed of sound…

Q: Suppose the PASCO Motion Sensor is calibrated to give correct measure- ments of position at 20°C,…

A:

Q: Two planes approach each other head-on, each has a speed of 785 kph and they spot each other when…

A: Speed is defined as the rate of change in distance with respect to time. It is given by Speed, v…

Q: A train on a straight track sounds a 400 Hz horn when passing a parked car on the road. The train is…

A: According to Doppler-Effect the relation between frequency of the source, observed frequency by…

Q: A projectile is approaching you at 50 m/s and whistling with a frequency of 300 Hz if heard by an…

A:

Q: A beachgoer in Florida notices the waves crashing ashore are spaced 15 meters apart and hit the…

A: The expression for speed of the waves traveling is,

Q: The star of a distant solar system explodes as a supernova. At the moment of the explosion, an…

A: Here given the spaceship is 15 AU away from the shock wave. The wave travels at 25000 km/sec.The…

Q: At what point along it's path would an ambulance sound "normal" to an observer? O When the ambulance…

A: We are given,  An observer observing the frequency of ambulance.  We need to find the point of time…

Q: Light is emitted by a distant star at a frequency of 4.56 x 10^24 Hz. a) If the star is moving…

A: Given, The distant star (source) frequency fs = 4.56×1024 Hz Here, the star/source is moving towards…

Q: Which of the following accurately describes the Doppler effect? a. As an object emitting a sound…

A: The flow of electric charge (q) per unit time (t) is known as electric current (I). Write the…

Q: How fast would you need to be driving towards a red light for it to appear green to you due to the…

A:

Q: Because of the Doppler effect, the sound heard by an observer listening to a moving ambulance siren,…

A: The apparent frequency in the doppler effect when the observer is at rest is given by: f'=fvv-vs

Q: As you drive your car along a country road at night, a deer jumps out of the woods and stands in the…

A: The car undergoes friction, calculate the net work done (W) by the car, that is the work done…

Q: An out-of-control alien spacecraft is diving into a star at a speed of 1.0 x 108 m/s. At what speed,…

A: According to the Einstein principle of relativity the speed of the light will be always same in all…

Q: The Mach number of an aircraft that travels with a speed of 260 m / s in air at 20 ° C while it…

A: Write the expression for the Mach number. M=vc Here, v represents the speed of aircraft and c…

Q: Two trains are running in the same direction on two parallel tracks. One train 180 m long is moving…

A: