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V. сорд 20 V₁ car copB Part A- Case 1: Cop car A emits the radar signal (of frequency 1) which is heard by the driver in the red car (at a frequency). What is the frequency difference Aff-f, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differoo, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency Case 1 Af■ -1462 Hz Submit Previous Answers All attempts used; correct answer displayed Two cop cars A and B both use radar unit of a frequency of -8.8x10 Hx. Assume the EM waves from the radar unit propagates in all directions. Cop car A is parked on the roadside. A red car is between the two cop cars and moves to the right at a speed of tear-51 m/s. Cop car B moves to the right at a speed of topt? = 28 m/s. Case 2: Cop car B emits the radar signal which is heard by the driver in the red car. Cop car B moves to the right at a speed of op 25 m/s-The red car moves to the right at a speed of 51 m/s ▼Part B - Case 2: what is the RELATIVE SPEED between the red car and the cop car B? Case 2 relative speed = 25.0 m/s Submit Previous Amer ✓ Correct ▾ Part C - Case 2: Cop car B emits the radar signal (of frequency f,) which is heard by the driver in the red car (at a frequency f.). What is the frequency difference Af=ff, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differnce, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency. Case 2 Af- Submit ΜΕ ΑΣΦ Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining ΗΣ

V. сорд 20 V₁ car copB Part A- Case 1: Cop car A emits the radar signal (of frequency 1) which is heard by the driver in the red car (at a frequency). What is the frequency difference Aff-f, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differoo, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency Case 1 Af■ -1462 Hz Submit Previous Answers All attempts used; correct answer displayed Two cop cars A and B both use radar unit of a frequency of -8.8x10 Hx. Assume the EM waves from the radar unit propagates in all directions. Cop car A is parked on the roadside. A red car is between the two cop cars and moves to the right at a speed of tear-51 m/s. Cop car B moves to the right at a speed of topt? = 28 m/s. Case 2: Cop car B emits the radar signal which is heard by the driver in the red car. Cop car B moves to the right at a speed of op 25 m/s-The red car moves to the right at a speed of 51 m/s ▼Part B - Case 2: what is the RELATIVE SPEED between the red car and the cop car B? Case 2 relative speed = 25.0 m/s Submit Previous Amer ✓ Correct ▾ Part C - Case 2: Cop car B emits the radar signal (of frequency f,) which is heard by the driver in the red car (at a frequency f.). What is the frequency difference Af=ff, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differnce, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency. Case 2 Af- Submit ΜΕ ΑΣΦ Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining ΗΣ

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter16: Waves
Section: Chapter Questions
Problem 43P: (a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the...
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V. сорд 20 V₁ car copB Part A- Case 1: Cop car A emits the radar signal (of frequency 1) which is heard by the driver in the red car (at a frequency). What is the frequency difference Aff-f, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differoo, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency Case 1 Af■ -1462 Hz Submit Previous Answers All attempts used; correct answer displayed Two cop cars A and B both use radar unit of a frequency of -8.8x10 Hx. Assume the EM waves from the radar unit propagates in all directions. Cop car A is parked on the roadside. A red car is between the two cop cars and moves to the right at a speed of tear-51 m/s. Cop car B moves to the right at a speed of topt? = 28 m/s. Case 2: Cop car B emits the radar signal which is heard by the driver in the red car. Cop car B moves to the right at a speed of op 25 m/s-The red car moves to the right at a speed of 51 m/s ▼Part B - Case 2: what is the RELATIVE SPEED between the red car and the cop car B? Case 2 relative speed = 25.0 m/s Submit Previous Amer ✓ Correct ▾ Part C - Case 2: Cop car B emits the radar signal (of frequency f,) which is heard by the driver in the red car (at a frequency f.). What is the frequency difference Af=ff, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differnce, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency. Case 2 Af- Submit ΜΕ ΑΣΦ Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining ΗΣ
Transcribed Image Text:V. сорд 20 V₁ car copB Part A- Case 1: Cop car A emits the radar signal (of frequency 1) which is heard by the driver in the red car (at a frequency). What is the frequency difference Aff-f, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differoo, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency Case 1 Af■ -1462 Hz Submit Previous Answers All attempts used; correct answer displayed Two cop cars A and B both use radar unit of a frequency of -8.8x10 Hx. Assume the EM waves from the radar unit propagates in all directions. Cop car A is parked on the roadside. A red car is between the two cop cars and moves to the right at a speed of tear-51 m/s. Cop car B moves to the right at a speed of topt? = 28 m/s. Case 2: Cop car B emits the radar signal which is heard by the driver in the red car. Cop car B moves to the right at a speed of op 25 m/s-The red car moves to the right at a speed of 51 m/s ▼Part B - Case 2: what is the RELATIVE SPEED between the red car and the cop car B? Case 2 relative speed = 25.0 m/s Submit Previous Amer ✓ Correct ▾ Part C - Case 2: Cop car B emits the radar signal (of frequency f,) which is heard by the driver in the red car (at a frequency f.). What is the frequency difference Af=ff, with a proper sign? Round to an integer. Critical Note: If you calculate the frequency of the radar signal detected by the driver in the red car before calculating the differnce, you must keep 10 digits in order to see the difference between the original emitted frequency and this received frequency. Case 2 Af- Submit ΜΕ ΑΣΦ Previous Answers Request Answer * Incorrect; Try Again; One attempt remaining ΗΣ
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