If a particle travelling with a speed of 0.9 of the speed of sound and is emitting radiations of frequency if 1kHz and moving towards the observer, what is the apparent frequency? a) 1.1 kHz b) 0.8 kHz c) 0.4 kHz d) 10 kHz

Q: What is The direction of A=2i-5j

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Q: What frequency is received by a person watching an ambulance "B" moving away from him at 162.5 km/h…

A: speed of sound = 339 m/s frequency emitted = 740 Hz speed of B = 162.5 km/hr  = 45.138 m/s

Q: A spaceship is approaching a space station at a speed of 1.95 x 105 m/s. The space station emits…

A: Write the given values of the problem- speed(u) u=1.95×105 ms frequency of source(fs)fs=5.99×1014 Hz

Q: Two trains, each moving with a velocity of 30m/s, cross each other. One of the trains gives a…

A: D

Q: Radio waves transmitted through space at 3.00 x 10° m/s by the Voyager spacecraft have a wavelength…

A: The radio waves transmitted through space by voyager spacecraft . The wavelength of the radio waves…

Q: Two interfering waves have a frequency of 2Hz & 6Hz. What is the beat frequency? a) 8Hz b) 4Hz c)…

A: Given: Two interfering waves have a frequency of f1=2Hz & f2=6Hz.

Q: Radio waves transmitted through space at 3.00×108 m/s by the Voyager spacecraft have a wavelength of…

A: The equation for the radio waves can be given as

Q: Radio waves transmitted through space at 3.00X108 m/s by the Voyager spacecraft have a wavelength of…

A: The frequency of the radio waves can be given by f=cλ

Q: Red Visible light has a wavelength of 6.5x10^-7m what is the frequency in s^-1

A: Required : Frequency of light

Q: VBR = 50 m/s VAR = 30 m/s Two cars are ini- tially 960m apart and are approaching each other at…

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Q: What is the expression for wave speed in the given equation: y = Asin(kx-wt + π)? a) dy/dt b) w/k…

A: The given equation is- y=Asin(kx-wt+π)  ....(1) We have to find wave speed v=? This type of equation…

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

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Q: QUESTION 18 A wave of wavelength 400 m is having a speed of 330 m/s. Its frequency is Additional…

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Q: frequency

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Q: X-rays used by dentists have a wavelength of roughly 3,0 x 10^-11 m. What is the frequency of these…

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Q: A radar pulse returns 4.0x 10-8 s after it was sent out and reflected by an object what is the total…

A: Formula of distance traveled by radar pulse is as follows; d=t2×c…

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: Police car with siren travelling v = 28m/s with siren frequency = 436 hz. Speed of sound is 343m/s.…

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Q: Microwaves travel at the speed of light, 3.00 ✕ 108 m/s. When the frequency of microwaves is 7.00 ✕…

A: Given C=3.00 ✕ 108 m/s f= 7.00 ✕ 109 Hz

Q: Water ripples are produced by making a cork oscillate up and down at a frequency of 7Hz. The peaks…

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Q: What is the speed of a water wave of frequency 2Hz and wavelength 1.5m?

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Q: An observer standing by the side of a road hears the siren of an ambulance, which is moving away…

A: A

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

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Q: 20. What would the speed of an observer be if a red (4.688 x 1014 Hz) traffic light appeared green…

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Q: of this frequency in air at a temperature of 20.0°? x 10

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Q: Sound pulses emitted by a dolphin travel through ocean water at a rate of 1450 m/s  towards a fish…

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Q: A bat flying at 4.60 m/s is chasing an insect flying in the same direction. The bat emits a 39.9-kHz…

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Q: A bat sends out a sends a signal of 50.0 kHz and receives a returned signal from an object moving…

A: The speed of the object is, v0=27.5 m/s The initial frequency of the transmitted signal is, f0=50…

Q: Two cars A & B are travelling towards one another and blowing their horns. You are sitting in car A…

A: Answer:-  Given  Speed of car A (Va) = 27.2 m/s  Speed of car B (Vb) = 24.2 m/s  Frequency of car…