A rescue plane is moving to an emergency beacon that has a frequency of 15.2 kHz. The plane is traveling at 140 m/s.  (a) What is the wavelength of beacon picked up by the plane? (b) Can the people on the plane hear the beacon? (velocity of sound in air is 343 m/s)

Q: A student attaches a f = 3.5 kHz oscillator to one end of a metal rail of length L = 19 m. The…

A: Given information:The length of the rail (l) = 19 mTime taken to by sound wave to travel the length…

Q: What frequency is received by a mouse just before being dispatched by a hawk flying at it at 30.0…

A: Given: The speed of the hawk is 30 m/s. The speed of the sound is 331 m/s. The frequency emitted by…

Q: An oceanic depth-sounding vessel surveys the ocean bottom with ultrasound waves that travel at 1530…

A: The depth of the water is the distance traveled by the sound waves and this distance can be given as

Q: A bat flying at 4.55 m/s is chasing an insect flying in the same direction. The bat emits a 39.9-kHz…

A: Here first we will calculate the frequency the insect hear and then the frequency of reflected the…

Q: Suppose a dolphin sends out a series of clicks that are reflected back from the bottom of the ocean…

A: Given:Distance covered by the sound to reach the bottom of the sea (d) = 55 mSpeed of sound in…

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

A: Given data: u = 1.60 ✕ 105 m/s fs = 5.94 ✕ 1014 Hz c= 2.9979 ✕ 108 m/s Need to determine the…

Q: we are moving away from a stationary cell phone tower at 25 m/s. If the frequency emitted by the…

A:

Q: A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound,…

A:

Q: Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength…

A: Given data The wavelength is λ=1.50 μm The lamp output is P=200 W The diameter of the circular area…

Q: A bat flying at 5.05 m/s is chasing an insect flying in the same direction. The bat emits a 39.8-kHz…

A: Given values: Speed of bat, vs=5.05 m/s Speed of sound in air, v=343 m/s Frequency of chirp emits by…

Q: A source of electromagnetic waves radiates power uniformly in all directions at a single frequency.…

A:

Q: A spaceship is approaching a space station at a speed of 3.40 x 105 m/s. The space station has a…

A:

Q: A speed radar aims microwaves with a frequency of 20 GHz at an incoming vehicle traveling at 135…

A: Given, Origianl frequency of the microwaves emitted by the speed radar is  f0=20GHz=20×109Hz Speed…

Q: The sound from a truck moving at  37m/s reflects from a cliff and is heard by an observer on the…

A: Given data: Speed of sound from truck is, vt=37 m/s. Initial wavelength of sound wave is, λ=0.15 m.…

Q: While running on the sidewalk at 5.2m/s, you hear an ambulance approaching you from behind. It is…

A:

Q: A DJ is setting up their equipment and measures the sound level near a speaker to be 44.72dB. They…

A: Given,

Q: Red Light in air has a frequency of 4.3 x 104 Hz. What is the speed in glass for red light if it has…

A:

Q: A car's siren emits a sinusoidal wave with frequency fₛ=280Hz, the speed of sound V = 270m/s and the…

A:

Q: All AM radio stations are assigned frequencies in the range between 550 and 1600 KHz. The speed of…

A: The first given frequency, The second given frequency, The speed of radio waves,

Q: A sound wave travelling in a dense medium has a frequency of 20 KHz and a wavelength of 40 cm. What…

A: Write the expression for the speed of the waveform. Here, n represents the frequency and λ…

Q: An open closed tube has a fundamental frequency of 200hz. Which of the following frequencies are not…

A: Fundamental frequency (f) = 200 Hz Tube = open at one end

Q: Electromagnetic waves can form standing waves. In a standing wave pattern formed from microwaves,…

A: Given Electromagnetic waves can form standing waves standing wave pattern formed from microwaves,…

Q: A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects under…

A: SONAR is a device used to detect and locate objects under water using ultrasonic waves. The speed of…

Q: Alysson joins a race. She is running at a constant pace of 2m/s. Eve, another runner who enjoys…

A: Sound waves are longitudinal waves which imply that these waves travel in a direction parallel to…

Q: An echo is heard in 3 s. What is the distance of the reflecting surface from the source, given that…

A: Given : Speed of sound (v) = 342 ms-1 Echo returns in time (t) = 3 s

Q: AM radio signals are broadcast at frequencies between 550 kHz (kilohertz) and 1600 kHz and travel at…

A:

Q: The speed of light in air is approximately v = 3.00 × 108 m/s and the speed of light in glass is v =…

A:

Q: Two loudspeakers produce the same pure-tone sound (that is, same frequency). A sound detector is…

A: GIVEN: distance of sound detector from loudspeakers (l1) = 5m, l2 = 5.40 m speed of sound (v) =…

Q: The sun emits light (which we can regard as a sinusoidal wave) equally in all directions. The…

A: Given: The distance between sun and earth is d=1.50×1011 m. The intensity of light is I=1.36 kW/m2.…

Q: A Doppler radar emits waves of frequency @p. The radar is used for measuring the position and speed…

A: The figure showing the radar and plane is as follows:

Q: On its highest power setting, a certain microwave oven projects 1.00 kW of microwaves onto a 30.0 by…

A: Given data The Highest power setting of the microwave is given as P = 1 kW = 1 x 103 W. The area of…

Q: Gamma-ray bursters are objects in the uni- verse that emit pulses of gamma rays with high energies.…

A: We know the relation between the frequency(f) , wave length(lambda) and speed of light(c) is…

Q: The average depth of penetration of an ultra-sound wave of the frequency f = 800 kHz in tissue is 4…

A: Given The initial intensity of the wave is I0=10 W/m2. The skin depth or average depth of…

Q: The speed of sound at 0°C in open air is 331.3m/sec. At what temperature would the wavelength of a…

A: frequency = f = 440 Hz wavelength = λ = 0.82 m

Q: You are traveling at 19m/s while a vehicle with a siren approaches you from behind at 29m/s. You…

A:

Q: We stand in front of a wall. Between us and the wall, at the height of our ears, there is a…

A: Given data, Actual frequency of the whistle = 600 Hz Beat frequency = 3 Hz

Q: Police uses a 33.4 GHz radar gun to measure the car speed. A moving car makes a 30° angle with the…

A:

Q: This ship is surveying a lake bed with ultrasonic sound that travels 1400 m/s in freshwater. The…

A: Speed of ultrasonic sound in water, v = 1400 m/s  Time taken by sound to reach back to the observer…

Q: Hadassah joins a race. She is running at a constant pace of 2m/s. Gamaliel, another runner who…

A: Given, Speed of observer=2m/s Speed of source=3m/s Frequency=800Hz Speed of sound=340m/s

Q: There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers,…

A: Recall VαTSpeed of sound is proportional to square root of temperature.

Q: The speed of electromagnetic waves in air is 3.0 × 108 m/s. What is the wavelength of FM radio waves…

A:

Q: The crew of a ship going 35.4 m/s towards a distress beacon hears a frequency of 11khz. What is the…

A:

Q: Sound waves entering human ear first pass through the auditory canal before reaching the eardrum. If…

A: Length of the auditory canal, l = 2.5 cm=2.5×10-2 m Diameter of the auditory canal, d= 7.00…

Q: A spaceship is approaching a space station at a speed of 2.00 × 10° m/s. The space station has a…

A: (a) The frequency of the beacon observed on the spaceship is fs=f0cc-v=5.97×1014Hz2.9979×108…

Q: stereo speaker is placed between two observers who are 38 m apart, along the line connecting them.…

A: The distance between two observer is 38 m.The recoded intensity by first observer is 55 dB.The…

Q: What is the frequency of a pressure wave of wavelength 4.0 m that is traveling at 1250 m/s?

A: given wavelength, λ=4 mvelocity, v=1250 m/sfrequency(f) is related asv=λf

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.