Wednesday
March 29, 2017

Number of results: 71,754

physics
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
October 24, 2011 by fiko

physics
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
October 24, 2011 by maria

physics
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
October 24, 2011 by maria

physics
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
October 24, 2011 by maria

PHYSICS - Waves
Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. Sound waves with a wavelength of 2.5 m are traveling 7.5 m/s. How many waves will pass a microphone in 10.0 s? (Answer 30 waves)
April 9, 2013 by Diana

Physics Waves
Earthquakes are essentially sound waves traveling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse seismic waves. These travel at different speeds. The speed of longitudinal waves, called P waves, is...
April 21, 2010 by Mike

physics
Earthquakes are essentially sound waves—called seismic waves—traveling through the earth. Because the earth is solid, it can support both longitudinal and transverse seismic waves. The speed of longitudinal waves, called P waves, is 7800m/s . Transverse waves, called S ...
April 7, 2014 by Kate

physics
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal waves, called P waves, is ...
November 21, 2008 by Anonymous

Physics
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal waves, called P waves, is ...
November 22, 2010 by Stella

Physics
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal waves, called P waves, is ...
November 23, 2010 by Patrick

Physics
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal waves, called P waves, is ...
November 23, 2010 by Mike

Physics HELP!!
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal waves, called P waves, is ...
November 21, 2012 by sarah

Science
Im sorry i am totally stumped What is the main difference between mechanical and electromagnetic waves A. Mechanical waves involve the transfer of energy; electromagnetic waves do not B. Mechanical waves require a medium to travel in; electromagnetic waves do not C. Mechanical...
April 27, 2016 by help me

Physics
The speed of longitudinal waves, called P waves, is 7274.0 m/s. Transverse waves, called S waves, travel at a slower 3803.0 m/s. A seismograph records the two waves from a distant earthquake. If the S wave arrives 4.47 min after the P wave, how far away was the earthquake?
November 23, 2010 by Pete

science
1. What is the main difference between mechanical and electromagnetic waves A. Mechanical waves involve transfer of energy; electromagnetic waves do not. B. Mechanical waves require a medium to travel in; electromagnetic waves do not. C. Mechanical waves have amplitude and ...
September 30, 2016 by jacob

Science
What is the main difference between mechanical and electromagnetic waves? A. Mechanical weaves involved transfers energy; electromagnetic waves do not B. Mechanical waves require a medium to travel in; electromagnetic waves do not***** C. mechanical waves have amplitude and ...
March 13, 2017 by I need help

PHYSICS - Waves
Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. If 3 sound waves pass a microphone in 4.0 s while traveling 5.0 m/s, what is the wavelength of the waves? (6.67 m)
April 9, 2013 by Diana

Physics
Last question i'm stuck on please help me through this. Five waves pass a dock in 2.0 s. If the waves are traveling at 10.0 m/s, then what is the wavelength of the waves?
April 14, 2014 by Me and I

Physics
A pond is 12 metres across. The crests of two successive waves are 60.0 cm apart and they each move across the pond in 15 seconds. a)What is the velocity of the waves? b)What is the frequency of the waves? c)What is the period of the waves?
February 24, 2013 by Mark

Physics
A pond is 12 metres across. The crests of two successive waves are 60.0 cm apart and they each move across the pond in 15 seconds. a)What is the velocity of the waves? b)What is the frequency of the waves? c)What is the period of the waves?
November 23, 2014 by Sasha

college physics
A student observes 30 waves traveling down a string in a lab experiment. It takes 10 seconds for the waves to all go by. What is the frequency of the waves (in Hz)?
July 25, 2016 by Taylor

Physics
Standing waves are produced in a string that is 4.0 m long. If the waves are travelling at 125 cm/s and the distance between the first and the fifth nodes is 80.0 cm, find the frequency of the waves.
November 25, 2008 by Lizzie

physics
while watching ocean waves at the dock of the bay. otis notices that 10 waves pass beneath him in 30 seconds. he also notices that the crests of succesive waves exactly coincide with the posts that are 5 meters apart. what are the period frequency wavelength and speed of the ...
February 11, 2011 by charlie

Physics
While watching ocean waves at the dock of the bay, Otis notices that 10 waves pass beneath him in 30 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 5 meters apart. What are the period, frequency, wavelength, and speed of ...
March 14, 2011 by Shannon

Physics
What is stimulated emission? a. the process of distinguishing between sources of electromagnetic waves. b. the process of reducing mechanical waves' energy. c. the process of amplifying sound waves. d. producing move light waves which are coherent with an incident light wave. ...
March 9, 2017 by Anonymous

Physics
The velocity of the transverse waves produced by an earthquake is 5.08 km/s, while that of the longitudinal waves is 8.3312 km/s. A seismograph records the arrival of the transverse waves 55.9 s after that of the longitudinal waves. How far away was the earthquake? Answer in ...
May 8, 2011 by Laura

Phsyics Waves
Earthquakes are essentially sound waves traveling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse seismic waves. These travel at different speeds. The speed of longitudinal waves, called P waves, is ...
April 25, 2010 by Michael Moskvich

Physics
The velocity of the transverse waves produced by an earthquake is 7 km/s, while that of the longitudinal waves is 11.41 km/s. A seismo- graph records the arrival of the transverse waves 51.1 s after that of the longitudinal waves. How far away was the earthquake?
September 26, 2012 by Evelyn

physics
Which of the following conditions is not necessary to observe an interference pattern between two sets of waves? Choose one answer. a. The waves must have the same wavelength. b. The waves must have a constant phase difference. c. The waves must have the same amplitude. d. The...
April 17, 2011 by ashley --

Physics
The velocity of the transverse waves produced by an earthquake is 7.2 km/s, while that of the longitudinal waves is 4.2 km/s. A seismograph records the arrival of the transverse waves 68 s before that of the longitudinal waves. How far away was the earthquake?
December 14, 2007 by Einstein

Physics
Which of the following is correct for the two coherent light waves to produce zero light? The light waves should travel in perpendicular directions. The light waves are in phase with each other. The light waves are out of phase with each other. The light waves should pass ...
May 10, 2015 by Brian

Quick Physics help
1. What is the medium for waves on a rope? 2. What is the medium for earthquake waves? 3. A characteristic of waves is that after the wave has passed the medium is (disturbed, undisturbed) is this disturbed? 4. A cork is floating in the water 20 m from the shore of a lake. No ...
April 10, 2016 by Anonymous

Science
Electromagnetic and mechanical waves have different characteristics that make them advantageous for certain applications. Select the reasons that mechanical waves, such as ultrasound, are used for soft tissue imaging and to identify fractures in metals. Question 1 options: ...
March 14, 2017 by Maya

Physics
Which of the following are not transverse waves? a) Wind (Airy) waves on the ocean. b) Water ripples in a small pool. c) Microwaves inside a microwave oven. d) Vibrations travelling on the string of a guitar. e) Radio waves travelling through space. f) Vibrations travelling on...
May 18, 2011 by Brandy

Physics
On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves that killed hundreds of thousands of people. Satellites observing these waves from space measured 800 km from one wave crest to the next and a period between waves of 1.0 ...
July 14, 2010 by Anonymous

Physics
Which of the following is correct for the two coherent light waves to produce zero light? The light waves should travel in perpendicular directions. The light waves are in phase with each other. The light waves are out of phase with each other. The light waves should pass ...
October 19, 2012 by Blah

physics
Earthquakes produce several types of shock waves. The most well-known are the P-waves (P for primary or pressure) and the S-waves (S for secondary or shear). In the earth's crust, the P-waves travel at around 6.5 km/s while the S-waves move at about 3.5 km/s. The actual speeds...
June 30, 2011 by mikeM

Physics
When interference happens with two monochromatic light waves, which of the following is a characteristic of the amplitude of the resultant wave? a. it is zero. b. it is equal to the sum of the amplitudes of the component waves. c. less than the amplitude of either of the ...
March 8, 2017 by Anonymous

Sources and uses for the following: Radio waves Microwaves Infrared Waves Visible Light Waves Ultraviolet Waves X-Rays Gamma rays
October 30, 2013 by Unknown

physics
wonder waves in shallow yellow dA.isc are 6.0 cm long. at one point, the water oscillates up and down at a rate of 4.8 of oscillations per second. A. what is the speed of the water waves? B. what is the period Of water waves?
March 12, 2013 by Jordan

physics
The velocity of the transverse waves produced by an earthquake is 8.9 km/s, and that of the longitudinal waves is 5.1 km/s. A seismograph records the arrival of the transverse waves 68 s before the arrival of the longitudinal waves. How far away was the earthquake?
November 26, 2011 by Ashley

Physics
You are standing on the beach and you notice 4 waves travel over your feet in 8 seconds. Your friend is 4 meteres from you in the water and you count 3 waves between you. How fast do the waves travel on the water?
May 1, 2011 by conner

physics
Water waves in a shallow dish are 5.0 cm long. At one point, the water moves up and down at a rate of 5.2 oscillations per second. (a) What is the speed of the water waves? (b) What is the period of the water waves?
April 22, 2008 by phillup

Physics
Radio waves are electromagnetic waves that travel at a speed of 3.00 108 m/s, the speed of light. An AM radio station has an assigned frequency of 1350 kHz, which means that the radio waves broadcast by the station are at this frequency. Find the wavelength of these radio waves.
April 22, 2012 by Alex

Physics
longitudinal waves ->move in the ____________as the medium movement. transverse waves-> move____________to the medium movement. Waves transfer_______ without transfering_____
June 6, 2009 by Tara

Physics
You dip your finger into a pan of water twice each second, producing waves with crests that are separated by 0.15 m. a) determine frequency of these water waves in units of Hz?? b) determine the period of these water waves in units of s. ?? c) determine the speed of these ...
February 24, 2009 by Bob

Physics
The velocity of the transverse waves produced by an earthquake is 6.13 km/s, while that of the longitudinal waves is 9.9919km/s. A seismograph records the arrival of the transverse waves 61.5 seconds after that of the longitudinal waves. How far away was the earthquake? ...
September 21, 2014 by Marie

Science
Certain seismic waves travel as.. A) electromagnetic and transverse waves. B) visible light and longitudinal waves. C) longitudinal and transverse waves. D) compression and visible light waves. I have no idea I never learned this:(
January 14, 2016 by Anon

physics
A group of swimmers is resting in the sun on an off shore raft. They estimate that 1.1m separates a trough and an adjacent crest of surface waves on the lake. In addition, they count 23 crests that pass by the raft in 15.7seconds. What is the frequency of these surface waves? ...
March 13, 2011 by suzanne

Physics
While watching ocean waves at the dock of the bay, Otis notices that 13 waves pass beneath him in 26 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 5 meters apart. What are the period, frequency, wavelength, and speed of ...
February 28, 2011 by Kevin

physics
While watching ocean waves at the dock of the bay, Otis notices that 8 waves pass beneath him in 30 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 3 meters apart. What are the period, frequency, wavelength, and speed of ...
February 28, 2011 by haylee

physics
While watching ocean waves at the dock of the bay, Otis notices that 13 waves pass beneath him in 32 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 7 meters apart. What are the period, frequency, wavelength, and speed of ...
April 14, 2011 by anna

physics
As we examine waves on a water surface we notice that 34 waves pass in 54.4 s. We also notice that the distance between the third wave crest and the ninth wave crest is 22.3 cm. How far will these waves travel in 1.50 min?
April 17, 2012 by acrid

physics
Radio waves are able to diffract readily around buildings, as anybody with a portable radio receiver can verify. However, light waves, which are also electromagnetic waves, undergo no discernible diffraction around buildings. Why not?
June 26, 2008 by Anonymous

physics
Suppose the water waves have a velocity of 1.2m/s and wavelength of 2.4m What is the frequency of the waves?
March 22, 2012 by ******tasha******

physics
Which of the following are not transverse waves? a) Water ripples in a small pool. b) Sound waves traveling through water. c) Radio waves traveling through space. d) Microwaves inside a microwave oven. e) The vibrations on the surface of a drum.
January 15, 2010 by hilary

physics
An acoustic burglar alarm consists of a source emitting waves of frequency 28.0 kHz. What is the beat frequency between the source waves and the waves reflected from an intruder walking at an average speed of 0.095 m/s directly away from the alarm?
September 27, 2014 by onon

physics
Which has the longest wavelengths-light waves, x-rays, or radio waves?
December 8, 2007 by Anonymous

physics
A chain of ocean waves crests at 35m apart , 15 miles/hr. What is the frequency of the waves?
September 19, 2012 by Terri

science
If radio waves are not compressional waves,like sund waves, what is their role in enabling us to hear music?
December 4, 2007 by Juliann

physics
Radio waves, light and X-rays, electromagnetic waves
February 3, 2010 by oumayma

Science
What is the difference between p-waves, s-waves, and surface waves? Which do the most damage? Please and thank you!
November 14, 2007 by Autumn

Physics
In our everyday environment, diffraction is much more evident for sound waves than for light waves. Why is this so?
March 22, 2008 by Emily

physics
What vibrates in the following types of wave motions (i) light waves. (ii) sound waves. (iii) x-rays.
March 23, 2010 by Edwin

Waves and the Media
What do mechanical waves such as sound need that electromagnetic waves do not?
March 24, 2013 by Anonymous

science
Which of the following travels the fastest? sound waves in air, sonar, microwave radiation, waves produced by a sonic boom, Ultrasonic waves?
April 30, 2011 by Anonymous

physics
The velocity of waves on a string is 97 m/s. If the frequency of standing waves is 476 Hz, how far apart are two adjacent nodes?
May 1, 2011 by perry

physics
if two waves mix while moving, will one delay the other? a) yes b) no c) sometimes d) only for sound waves
August 25, 2012 by hanan needs you

physics -- waves
How does rarefraction affects the frequency of waves ?
April 1, 2011 by ashley --- HELP PLEASEE!!!

physics
Earthquakes are motions of the earth's crust. Essentially, they are big sound waves that travel through the earth. There are two types of waves. The first type is called a longitudinal or P wave, where the earth compresses in the same direction as the wave travels. The second ...
May 9, 2013 by rohit

Physics
Please Help! In our everyday environment, diffraction is much more evident for sound waves than for light waves. Why is this true?
May 13, 2010 by Katie

Physics
An FM radio station broadcasts electromagnetic waves at a frequency of 1.08 × 10§ hertz. The speed of these waves is 3.0 × 10§ meters/second. Find the wavelength.
July 5, 2012 by Dave

physiiics
Which of the following is correct for the two coherent light waves to produce zero light? The light waves should travel in perpendicular directions. The light waves are in phase with each other The light waves are out of phase with each other. The light waves should pass ...
February 11, 2013 by ooommgggg

Science
6. Sonar is used to inspect pipelines and bridge foundations. In this scenario, sonar takes advantage of the fact that (1 point) A.sound waves can reflect.*** B.sound waves can diffract. C.sound waves can spread out. D.sound waves can refract.
January 21, 2015 by jeje

physics
Longitudinal waves in a spring have a wavelength of 50mm.The vibrator making them is vibrating at 5 oscillations per second. Calculate the speed of the waves.
April 8, 2013 by Percy

physics
Longitudinal waves in a spring have a wavelength of 50mm.The vibrator making them is vibrating at 5 oscillations per second. Calculate the speed of the waves.
April 8, 2013 by Percy

physics
The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What isthe wavelengthofradio waves emit- ted at 97.9 MHz? Answer in units of m
September 18, 2014 by annie

Physics
Two waves, identical except for phase, are traveling in the same direction through the same medium. Each of the waves has amplitude A. The amplitude of the combined (net) wave is 1.14A. What is the absolute value for the smallest possible phase difference between the two waves...
October 8, 2016 by Ck

Science
1. What is the main difference between mechanical and electromagnetic waves? A. Mechanical waves involve transfer of energy, electromagnetic waves do not. B. Mechanical waves require a medium to travel in, electromagnetic waves do not.~~~~ C. Mechanical waves have amplitude ...
March 14, 2017 by Teddy

physics
Radio waves of frequency 30 kHz are received at a location 1500 km from a transmitter. The radio reception temporarily “fades” due to destructive interference between the waves travelling parallel to the ground and the waves reflected from a layer (ionosphere) of the earth...
December 14, 2012 by amy

Physics
Part(1 of 3) You dip your ﬁnger into a pan of water twice each second, producing waves with crests that are separated by 0.17 m. Determine the frequency of these water waves. Answer in units of Hz Part(2 of 3) Determine the period of these water waves. Answer in units ...
February 15, 2012 by Angel

physics
In a double-slit experiment, two beams of coherent light traveling different paths arrive on a screen some distance away. What is the path difference between the two waves corresponding to the third bright band out from the central bright band? The path difference between the ...
March 22, 2014 by Anonymous

math
Earthquakes produce several types of shock waves. The most well-known are the P-waves (P for primary or pressure) and the S-waves (S for secondary or shear). In the earth's crust, the P-waves travel at around 6.5 km/s while the S-waves move at about 3.5 km/s. The actual speeds...
June 30, 2011 by mikeM

Science
I need 3 examples of mechanical waves. I have seismic, and ocean waves. Are their any other examples besides these and sound waves?
April 13, 2012 by Alyonka

physics
Water waves in a lake travel 5.23 m in 1.52 s. The period of oscillation is 0.84 s. What is the speed of the water waves? Answer in units of m/s. what is the wavelength?
March 17, 2015 by josh

physics
Suppose that water waves coming into a dock have a velocity of 1.0 m/s and a wavelength of 2.2 m. With what frequency do these waves meet the dock?
December 6, 2010 by judy

physics
A stereo speaker represented by P in Figure 13-22 emits sound waves with a power output of 130.0 W. What is the intensity of the sound waves at point x when r = 7.8 m? W/m2
March 12, 2011 by unknown

Physics
An FM radio station broadcasts at 82.3MHz. Determine the period of the radio waves. I already go the answer: 1.22×10-8 s but help me with part b please!!! b). What is the wavelength of the waves?
November 24, 2012 by rory

Physics
Ocean waves are traveling to the east at 4.3 m/s with a distance of 22 m between crests. (a) With what frequency do the waves hit the front of a boat when the boat is at anchor?
February 3, 2013 by Anonymous

Physics
the distance between two successive crests in waves is 1.50m, and the source generates 25 crests and 25 troughs in 5.00sec. what is the speed of the waves?
June 16, 2013 by Riana

Physics
As the frequency of sound waves increases, the wavelength of the sound waves decreases true or false?
December 9, 2007 by taylor

physics
Suppose you notice 6.3 ocean waves pass by a buoy in 26.3 seconds. What is the frequency of the ocean waves?
March 13, 2011 by mark

physics
Water waves in a lake travel 4.5 m in 1.7 s. The period of oscillation is 1.2 s. (a) What is the speed of the water waves? (b) What is their wavelength?
February 1, 2013 by noah

physics
A string with linear mass density μ = 0.0279 kg/m under a tension of T = 183 N is oriented in the x-direction. Two transverse waves of equal amplitude and with a phase angle of zero (at t = 0) but with different frequencies (ω = 3420 rad/s and ω/3 = 1140 rad/s) ...
July 13, 2014 by linda

physics
A string with linear mass density μ = 0.0279 kg/m under a tension of T = 183 N is oriented in the x-direction. Two transverse waves of equal amplitude and with a phase angle of zero (at t = 0) but with different frequencies (ω = 3420 rad/s and ω/3 = 1140 rad/s) ...
July 14, 2014 by Lema

physics
A stereo speaker represented by P in the figure below emits sound waves with a power output of 114 W. What is the intensity of the sound waves at point x when r = 11.8 m?
February 12, 2014 by katie

Physics
Two point sources emit sound waves of 1 m wavelength. The sources are pointed at each other. The sources, 2 m apart, emit waves which are in phase with each other at the instant of emission. a) Where, along the line between the sources are the waves out of phase with each ...
December 11, 2016 by Z

physics
Two waves traveling on a string in the same direction both have a frequency of 92 Hz, a wavelength of 0.19 m, and an amplitude of 0.32 m. What is the amplitude of the resultant wave if the original waves differ in phase by pi /3 rad? What is the phase difference between the ...
October 21, 2014 by Samet

physics
Two waves traveling on a string in the same direction both have a frequency of 92 Hz, a wavelength of 0.19 m, and an amplitude of 0.32 m. What is the amplitude of the resultant wave if the original waves differ in phase by pi /3 rad? What is the phase difference between the ...
October 21, 2014 by Samet heelllpp

Physics
"Vibrators A and B are sources of waves with different wavelengths and they are placed close to one another in a ripple tank. Waves from source A have a wavelength of 8.0cm while those from B have a wavelength of 10cm. The waves start out in phase with each other. For each ...
July 21, 2010 by Stuck

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