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Glencoe Physics: Principles and Problems, Student Edition

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 95A

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The state highway patrol radar guns use a frequency of 9.05 GHz. If you're approaching a speed trap driving 31.3 m/s, what frequency shift will your FuzzFoiler 2000 radar detector see?

The radar gun measures the frequency of the radar pulse echoing off your car. By what percentage is the measured frequency different from the original frequency? (Enter a positive number
for a frequency increase, negative for a decrease. Just enter a number, without a percent sign.)

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Radio station WWVB, operated by the National Institute of Standards and Technology (NIST) from Fort Collins, Colorado, at a low frequency of 60 kHz, broadcasts a time synchronization signal whose range covers the entire continental US. The timing of the synchronization signal is controlled by a set of atomic clocks to an accuracy of 101012 s, and repeats every 1 minute. The signal is used for devices, such as radio-controlled watches, that automatically synchronize with it at preset local times. WWVB's long wavelength signal tends to propagate close to the ground. (a) Calculate the wavelength of the radio waves from WWVB. (b) Estimate the error that the travel time of the signal causes in synchronizing a radio controlled watch in Norfolk, Virginia, which is 1570 mi (2527 km) from Fort Collins, Colorado.
A speeder tries to explain to the police that the yellow warning lights she was approaching on the side of the road looked green to her because of the Doppler shift. How fast would she have been traveling if yellow light of wavelength 576.6 nm had been shifted to green with a wavelength of 562.3 nm? Note: For speeds less than 0.03c, the equation below will lead to a value for the observed frequency accurate to approximately two significant digits. fO ≈ fS (1 ± u/c) if u < c what is the frequency in m/s?
A speeder tries to explain to the police that the yellow warning lights she was approaching on the side of the road looked green to her because of the Doppler shift. How fast would she have been traveling if yellow light of wavelength 576.6 nm had been shifted to green with a wavelength of 562.3 nm? Note: For speeds less than 0.03c, the equation below will lead to a value for the observed frequency accurate to approximately two significant digits. answer in m/s
A spacecraft emits a radio signal with a frequency of fs = 3.05 GHz as it speeds away from Earth at a speed of u = 7.51 × 107 m/s. What frequency (fo) is received on Earth? Your answer should be in GHz.
What can result from exposing the human body to frequencies between 5Hz to 8Hz
During quarantine, a student has been looking at a red light (frequency: 4×1014 Hz) for the past 10 minutes and wants to calculate out what is the wavelength?
While driving at a constant speed of 79 km/h, you are passed by a car traveling at 122 km/h. If the frequency of light emitted by the taillights of the car that passes you is 4.3 1014 Hz, what frequency will you observe? (Use c = 2.9979245 ✕ 108 m/s Enter your answer to at least eight significant figures.) Whats the change in fequency?
A GPS satellite is moving with a line of sight relative velocity of 3600m/s to a receiver. What is the Doppler shift to the centre frequency caused by this movement on the L1 and L2 signals from the satellite at the receiver?
The team monitoring a space probe exploring the outer solar system finds that radio transmissions from the probe take 2.53 hours to reach earth. How distant (in meters) is the probe?
For the CRO display of a pulse waveform, the time/cm is on 50ms/cm and the volt/cm switch is on 0.2V/cm. The width of one complete cycle is 3.5cm and the height of the pulse is 3.4cm. Determine a) the periodic time b) the frequency and c) the magnitude of the pulse voltage.
What is the wavelenth of the waves from a radion station tht broadcasts at 107.1 MHZ?
If you stood at the same point on a cold day were T2 = -7.5 °C how long is have taken fou u to hear the echo in s?

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