∙A state highway patrol car radar unit uses a frequency of 9.00 ×10^9 Hz . What frequency differ

Name: Problem 94, Chapter 25: Physics
Uploaded: 2020-04-04T14:33:23-08:00
Duration: 2 min 50 s
Channel: Nathan Silvano
Description: ∙A state highway patrol car radar unit uses a frequency of 9.00 ×10^9 Hz . What frequency difference will the unit detect from a car approaching a parked patrol car with a speed of 28.6 m / s ?

step 1 Okay, so in this problem we have a radar signal with a frequency of 9 times 10 to the 9 Hertz. W

Question

$\bullet$ A state highway patrol car radar unit uses a frequency of $9.00 \times 10^{9} \mathrm{Hz}$ . What frequency difference will the unit detect from a car approaching a parked patrol car with a speed of 28.6 $\mathrm{m} / \mathrm{s}$ ?

   $\bullet$ A state highway patrol car radar unit uses a frequency of
$9.00 \times 10^{9} \mathrm{Hz}$ . What frequency difference will the unit detect
from a car approaching a parked patrol car with a speed of
28.6 $\mathrm{m} / \mathrm{s}$ ?

Physics

James S. Walker 5th Edition

Chapter 25, Problem 94

Instant Answer

Solved by Expert Nathan Silvano

04/04/2020

Step 1

00 \times 10^{9} \mathrm{Hz}$ and the speed of the car is $28.6 \mathrm{m/s}$. We know that the speed of light is $3 \times 10^{8} \mathrm{m/s}$. Show more…

Show all steps

Thanks for your feedback!

$\bullet$ A state highway patrol car radar unit uses a frequency of $9.00 \times 10^{9} \mathrm{Hz}$ . What frequency difference will the unit detect from a car approaching a parked patrol car with a speed of 28.6 $\mathrm{m} / \mathrm{s}$ ?

Play audio

Feedback

Nathan Silvano and 101 other subject Physics 102 Electricity and Magnetism educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Doppler Effect

The Doppler effect refers to the change in frequency or wavelength of a wave as observed when there is relative motion between the source and the observer. In the context of radar, the effect is used to determine the speed of an object by measuring the shift in the frequency of electromagnetic waves when they reflect off a moving object.

Radar Frequency Detection and Reflection

Radar systems emit electromagnetic waves and analyze the frequency of the reflected waves to detect moving objects. When a wave reflects off a moving target, the frequency shift is effectively doubled due to the round-trip travel of the wave. This principle allows devices like state highway patrol radar units to accurately measure the speed of vehicles by detecting small differences in the transmitted and received frequencies.

Please give Ace some feedback