106 Figure 17-50 shows a transmitter and receiver of waves con- tained in a single instrument. It is used to measure the speed u of a target object (idealized as a flat plate) that is moving directly to- ward the unit, by analyzing the waves reflected from the target. What is u if the emitted frequency is 18.0 kHz and the detected fre- quency (of the returning waves) is 22.2 kHz? Target Figure 17-50 Problem 106.

106 Figure 17-50 shows a transmitter and receiver of waves con- tained in a single instrument. It is used to measure the speed u of a target object (idealized as a flat plate) that is moving directly to- ward the unit, by analyzing the waves reflected from the target. What is u if the emitted frequency is 18.0 kHz and the detected fre- quency (of the returning waves) is 22.2 kHz? Target Figure 17-50 Problem 106.

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...

See similar textbooks

Similar questions

An outdoor WIFi unit for a picnic area has a 100-mW output and a range of about 30 m. What output power would reduce its range to 12 m for use with the same devices as before? Assume there are no obstacles in the way and that microwaves into the ground are simply absorbed.
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.
Suppose you are located 180 in from a radio transmitter. (a) How many wavelengths are you from the transmitter if the station calls itself 1150 AM? (The AM band frequencies are in kilohertz.) (b) What if this station is 98.1 FM? (The FM band frequencies are in megahertz.)
In Example 18.1, we investigated an oscillator at 1.3kHz driving two identical side-by-side speakers. We found that a listener at point O hears sound with maximum intensity, whereas a listener at point P hears a minimum. What is the intensity at P? (a) less than hut dose to the intensity at O (b) half the intensity at O (c) very low but not zero (d) zero (e) indeterminate
Suppose a spherical particle of mass m and radius R in space absorbs light of intensity I for time t. (a) How much work does the radiation pressure do to accelerate the particle (mm rest In the given tine It absorbs the light? (b) How much energy canted by the electromagnetic waves is absorbed by the particle over this time based on the radiant energy incident on the particle?
A parallel-plate capacitor has a plate area of A=0.250m2 and a separation of 0.0100 in. What must be must be the angular frequency w for a voltage V(t)=V0sint with V0=100V to produce a maximum displacement displacement current of 1.00 A between the plates?
acBook Pro FM radio stat1on KRTH in Urangeler pr1adiart on an assigned trequencey or I1/ MHZ a Lower Of SO,000 W. BESHImate the average Intensity ot he wave at a distance oř39.5 km) trom the radio antenna. Assume tor the Purpose or this estimate thal the antenia vadiates equally in ali directions, So that the intensity Is constant over a hemisphhere (entered on the antenna. O ESHImate the ampi1tvde of the electric Flel a at this disstance.
Echo times are measured by diagnastic Ultrasound Scannes to deternmine the Solid 12e Of b ul 1ount tumor in a patlent, A transducer hears echoes cdluced by the top and bottom o tumor boundaries that diffe 95 x10-L.average us speed n Fissue is 1540m/s. what is the dia metcr.
Question 4 te p rieipee Adleet yret haslieparatm divtance ol 0.de mm. The fint height fringe ppcas S mm aluve the middle of the central hright fimer, when the alita are ithamatef with a laner of wavelength S12 n. What in the dstance to the sTEn from the slitu? O 0,65 m O n45 m O 0.77 m O 1.12 m O 0.56 m
a.) An ambulance moving away from you toward cliff ant 12 m/s emits sound a running velocity at fieauency 1000Hz. Yau are toward the clif freqvenuy with of a Z mls, what you ambulunce? Speed of do hear coming directly from 34 0mls. the sound is aj97z b,)৭27 C.)1034 d.71043 b.) What reflected freauency do you herr cliff? hear for saind from the b.) 1043 i.)972 d.) az7
Assume that you just got out of the airplane and you switched on your cell phone. If the closest BS is located at a distance of 5 kms, what is the minimum and the maximum delay before a contact is established between your cell phone and the nearest BS, given the BS transmits beacon signals every one second?
The absolute tolerance of the final answer is ±1e-8. i will give a huge thumbs up! Thank you!