1.Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. 1) How far away is the planet Venus if the round-trip echo time is 1000 s? 2) What is the echo time for a car 75 m from a Police radar unit?

1.Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. 1) How far away is the planet Venus if the round-trip echo time is 1000 s? 2) What is the echo time for a car 75 m from a Police radar unit?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 103AP: Radar is used to determine distances to various objects by measuring the round-trip time for an echo...

See similar textbooks

Related questions

Q: 1.Radar is used to determine distances to various objects by measuring the round-trip time for an…

A: Given: Echo time = 1000 s Formula used: speed=distancetime Speed will be of speed of light. Distance…

Q: A police officer's radar gun emits radio waves at a frequency of 11.7 GHz. What is the difference in…

Q: 1.Radar is used to determine distances to various objects by measuring the round-trip time for an…

A: Given a Radar is used to determine distances to various objects by measuring the round-trip time for…

Q: 4) The Earth has a radius of 6.38×106m and is 1.50×1011m from the sun. The intensity of sunlight at…

A: Given:- Earth has a radius (Rc) = 6.38×106m Distance from the sun (Res)=1.50×1011m The intensity…

Q: 1.What is the frequency of the following: a. microwaves with wavelength 30 m? b. x-ray with a…

A: As per guidelines only first question is solved here. 1. Given, a) microwave with wavelength , λ =…

Q: #2. The radio wave from station 103.3 FM can be written as y = 0.721 cos(6.49 × 10*t). Recall that…

A: Given: Equation of the radio wave, Speed of light, v= 3× 108 m/s

Q: A pulsar is a type of rotating neutron star that emits a beam of electromagnetic radiation. Imagine…

A: Due to Doppler Effect the wavelength observed will be smaller than the wavelength emitted at the…

Q: What is the wavelength of an FM radio station that broadcasts at 101.1 MHz?Assume speed of light c =…

A: Given: The frequency is f=101.1 MHz. The speed of light is c=3X108 m/s. The expression for…

Q: Suppose a star is 7.61 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…

Q: 11. [#669] Selling electricity. part 2 At the radius of the earth's orbit, the intensity of sunlight…

Q: A radio station is broadcasting radio waves a a wavelength of = 200 m. Determine the wavelength of…

A: Wavelength is decreased by the factor of 1.33

Q: Radar is used to determine distances to various objects by measuring the round-trip time for an echo…

A: Given here radar is used to find the distance of various objects by using echo we have to answer the…

Q: A phonograph record 32 cm in diameter rotates 41.4 times per minute. What is its frequency?

A: Given: diameter d = 32 cm rotates = 41.4 times per minute

Q: 4. Which statement explains why microwaves are used in satellite communication? * O It has…

A: Step1: Overview Microwaves can make it through the ionosphere, while lower frequency waves tend to…

Q: When Mars is 90 million km from Earth, a) How long would it take for a radio wave from a video…

A: distance of mars from earth = 90 million km = 9×1010 m speed of electromagnetic waves = 3×108 ms

Q: Suppose a star is 6.42 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…

A: Suppose a star is 6.42 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…

Q: What is the wavelength of a 92.9 MHz radio wave

Q: The distant galaxy called Cygnus A is one of the strongestsources of radio waves reaching Earth. The…

A: The time it takes for a wave to travel from the galaxy to Earth is, Time taken…

Q: 10. The dial on an FM radio contains numbers ranging from about 88 to about 108. These numbers…

A: Given data: Range of frequency is, f= 88 MHz - 108 MHz.

Q: 1. The team monitoring a space probe exploring the outer solar system finds that radio transmissions…

Q: An FM station broadcasts classical music at 99.3 MHz (megahertz, or 106 Hz). Find the wavelength (in…

Q: 01 IU lub quCJLIONS (De sure tU SHUW Your Wörk) 1. How does the fundamental resonant frequency of a…

A: As per guidelines for multiple questions, the first question has been answered.

Q: An FM station broadcasts classical music at 96.0 MHz (megahertz, or 106 Hz). Find the wavelength (in…

Q: A lamp gives an average output of 628 lumens. What is the MSCP?

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: When Mars is 90 million km from Earth, a) How long would it take for a radio wave from a video…

A: Distance of mars from earth = 90 million km Speed of EM wave = 3×108 ms

Q: 5. A mobile receiver is receiving signals from two radio transmitters. The mobile receiver is…

Q: 9. A certain radar installation transmits electromagnetic radiation with a wavelength of 3.5 cm.…

A: Given,

Q: Radio waves are widely used in communications industry. Aside from mobile phones that use radio…

A: Uses of Radio waves- a. Radio waves are used in RADAR(RAdio Detection And Ranging) b. Radio waves…

Q: A brighter red light will be of higher/lower/same frequency than a dimmer red light. Explain.

Q: What is the wavelength for an FM radio signal that has a frequency of 107.8 MHz? (speed of light, is…

Q: Do radio waves travel at the speed of sound or at the speed of light? Explain.

A: Radio waves are electromagnetic waves.

Q: What is the wavelength of a radio wave of a frequency 100Mhz? 2. What is the frequency of microwaves…

A: As per guidelines, only 3 question are solved here.

Q: If a microwave of a radar system has wavelength of 1 mm, what is its frequency?

A: According to Bartleby guidelines we can only solve the first question at a time. Kindly post rest of…

Q: 1. Determine the wavelength, in miles, if the period of the signal is 500µs. 2. The maximum peaks…

Q: When electromagnetic waves travel from one medium to another, its speed changes (either increase or…

Q: 25 Short Wavelengths of light have what kind of frequency? Higher frequencies Lower frequencies All…

A: Note: According to Bartleby's guideline, more than one and different questions asked, so the first…

Q: When Mars is 90 million km (9 x 10^10 m) from Earth, a) How long would it take for a radio wave from…

A: distance between earth and mars = 90 million km speed of radio wave = 3×108 ms

Q: 1) How long does it take a radio signal from Earth to reach the Moon, which has an orbital radius of…

Q: If you transmitted radio signals to the Moon when it is 377,000 km from Earth and waited to receive…

A: Given, Distance from moon to earth =377,000km speed of radiowave =3*108 m/s

Q: A heater emits heater with wavelength 0.009 m. (a) Determine the frequency of the heater. Hz the…

A: (a) Given the wavelength of the light is 0.009 m. Let c be defined as the speed of light. Then the…

Q: 17. An FM radio station broadcasts at 96.7 x 10° Hz. What is the wavelength of the radio wave used…

A: We know that relation between frequency and wave length f=Vλ…

Concept explainers

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

Question

1.Radar is used to determine distances to various objects by
measuring the round-trip time for an echo from the object. 1) How
far away is the planet Venus if the round-trip echo time is 1000 s?
|2) What is the echo time for a car 75 m from a Police radar unit?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. (a) How far away is the planet Venus if the echo time is 1000 s? (b) What is the echo time for a car 75.0 m from a Highway Police radar unit? (c) How accurately (in nanoseconds) must you be able to measure the echo time to an airplane 12.0 km away to determine its distance within 10.0 m?
Imagine that a spacecraft has landed on Mercury and is transmitting radio signals to Earth at a wavelength of 10.000 cm. When Mercury is seen from Earth in the evening sky, at its greatest angular distance east of the Sun, it is moving toward Earth at its maximum possible relative speed of 47.9 km/s. To what wavelength must you tune your radio telescope to detect the signals? (Hint: Use the Doppler formula in Reasoning with Numbers 6-2.)
Radio waves transmitted through space at 3.00108m/s by the Voyager spacecraft have a wavelength of 0.120 m. What is their frequency?
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 radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of this signal if it is received on a planet orbiting Proxima Centuri, the closest star to our Sun, at 4.243 ly away?
Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object, (a) How far away is the planet Venus if the echo time is 1000 s? (b) What is the echo time for a car 75.0 m from a highway police radar unit? (c) How accurately (in nanoseconds) must you be able to measure the echo time to an airplane 12.0 km away to determine its distance within 10.0 m?
(a) Two microwave frequencies are authorized for use in microwave ovens: 900 and 2560 MHZ. Calculate the wavelength at each. (b) Which frequency would produce smaller hot spots in foods due to interference effects?
A radar used to detect the presence of aircraft receives a pulse that has reflected off an object 6105s after it was transmitted. What is the distance from the radar station to the reflecting object?
(a) Calculate the range of wavelength for AM radio given its frequency range is 540 to 1600 kHz. (b) Do the same for the FM frequency range of 88.0 to 108 MHz.
(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)
Figure 24.26 shows the interference pattern of two radio antennas broadcasting the same signal. Explain how this is analogous to the interference pattern for sound produced by two speakers. Could this he used to make a directional antenna system that broadcasts preferentially in certain directions? Explain. Figure 24.26 An overhead view of two radio broadcast antennas sending the same signal, and the interference pattern they produce.
Find the frequency range of visible light, given that it encompasses wavelengths from 330 to 760 nm.