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July 30, 2014

Search: Physics - Doppler Effect

Number of results: 57,620

Doppler Effect
How fast must we be approaching a distant galaxy emitting yellow light (590nm) for it to appear green (520nm)? I believe it uses doppler effect, but how?
June 8, 2014 by Fernandez

Physics
Question about doppler effect: How do you solve when it gives you percentage value? (Q 1) How do you calculate for doppler effect when the listener is moving instead of the source of sound? (Q 2) Questions 1. As a racing car zooms by you, its pitch decreases by 20%. If the ...
November 25, 2009 by Tommy

physics
Explain the Doppler Effect?
April 12, 2012 by jeff

Physics
I need a complete list all the doppler effect equations for a beginner physics class. Here is a sample questions so you know the level Question: Two trains on separate tracks move toward one another. Train #1 has a speed of 130 km/hr and train #2 a speed of 90km/hr. Train 2 ...
July 7, 2011 by Tina

physics
how does the doppler effect relate to destructive interference?
April 1, 2011 by ashley --- HELP PLEASEE!!!

Physics-Please help
Could someone provide me with a simple explanation of how the Doppler Effect is used to determine the speed and direction of moving object
February 22, 2011 by Julia

Physics-Could someone please help me?
Could someone provide me with a simple explanation of how the Doppler Effect is used to determine the speed and direction of moving object
February 23, 2011 by Julia

DrBob222
The Doppler effect is a change in the ______of a sound. pitch
April 5, 2008 by Jon

Physical Science
How does a Doppler effect aid police in detecting speeding motorist?
April 5, 2008 by Rachel

Physics
A physics professor demonstrates the Doppler effect by tying a 600 Hz sound generator to a 1.0-m-long rope and whirling it around her head in a horizontal circle at 100 rpm. What are the highest and lowest frequencies heard by a student in the classroom? (Hint. Find the speed ...
February 26, 2010 by Anonymous

Physics - Doppler Effect
The siren in an ambulance has a frequency (according to you) of 1100 hz as it moves towards you at a speed v. It then makes a u-turn and travels away from you with a speed v, and you hear a frequency of 950 hz. What is the final speed v of the siren?
March 28, 2011 by J Velji

physics
1)A wave created when two different waves meet will have an amplitude greater than the individual waves because of. A)destructive interference B)constructive interference C)antinodes D)a change in boundary I got B 2)If a wave has a period of .02 seconds and a speed of 4 m/s, ...
April 6, 2008 by Jon

Physics doppler effect
A radar device emits microwaves with a frequency of 4.73E+9 Hz. When the waves are reflected from a van moving directly away from the emitter, the beat frequency between the source wave and the reflected wave is 751 beats per second. What is the speed of the van? (Note: ...
May 16, 2011 by Joan

Physics doppler effect
A person standing close to a railroad crossing hears the whistle of an approaching train. He notes that the pitch of the whistle drops as the train passes by and moves away from the crossing. The frequency of the approaching whistle is 523 Hz, and drops to 491 Hz after the ...
May 16, 2011 by Joan

physics
'a weather station monitors a storm using a radar system. the radio wave pulse emitted is received back at the transmitter after 0.34 ms. the wavelength emitted was 5.6 cm and that received after reflection from the storm was 1 billionth of a meter longer. what information ...
April 14, 2013 by mmk

physics
A policeman with a very good ear and a good understanding of the Doppler effect stands on the shoulder of a freeway assisting a crew in a 40-mph work zone. He notices a car approaching that is honking its horn. As the car gets closer, the policeman hears the sound of the horn ...
November 15, 2011 by maria

economics
When the price of summer tank tops falls and you buy more because they are relatively less expensive, this is called: a)elasticity effect b) deadweight loss effect c) income effect d) substitution effect
October 5, 2009 by dave

Chemistry
How would you find that water is more acidic than ammonia with out using pka values? would you use resonance effect, inductive effect, hybridization effect, or element effect?
June 29, 2012 by UCI Student

Physics
Ultrasound reflected from an oncoming bloodstream that is moving at 30 cm/s is mixed with the original frequency of 1.3 MHz to produce beats. What is the beat frequency? (Velocity of sound in blood = 1540 m/s.) Beat frequency = Hz HELP: This problem involves two Doppler shifts...
December 9, 2010 by Angel

physics
a.)At rest, a car's horn sounds at a frequency of 410 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 381 Hz. What is the speed of the car? b.)Is the cyclist ahead of ...
August 5, 2007 by sanchi

physics
in low temperature physics,at joule thomson effect hydrogen does not show cooling effect at room temperature why?
February 23, 2010 by karthika

Physiology
Indicate the effect of the hormone on the response (increase, decrease, no effect)? 1.__________________ effect of secretion of insulin on blood glucose levels 2.__________________ effect of secretion of ADH on blood pressure 3.__________________ effect of secretion of ...
May 18, 2011 by ivy

Physics waves- check answers please
1. If a bat emits 10 sounds in 5 seconds, what is the frequency of the bat's vocal outbursts (rounded to first decimal place) My answer: 2.0 Hz 2.If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this demonstration" a) constructive...
April 20, 2014 by Liz

physics
The Doppler effect occurs when a) a source of sound moves toward a listener b) a listener moves toward a source of sound c) a listener and a source of sound move away from each other d) a listener and a source of sound move toward each other. e) all of the above e--all of the ...
March 5, 2007 by anonymous

Comp 156
What is the definition of a cause and effect essay? Describe a cause and effect situation related to the effect of video games addiction on society
October 17, 2011 by Wonk

Comp 156
What is the definition of a cause and effect essay?Describe a cause and effect situation related to the effect of video games addiction on society.
October 19, 2011 by Wonk

Physics
Two eagles fly directly toward one another, the first at 13 m/s and the second at 21 m/s. Both screech, the first emitting a frequency of 3200 Hz and the second, a frequency of 3800 Hz. What frequencies do they hear if the speed of sound is 345 m/s? (Tip: keep 4 significant ...
December 6, 2010 by Cindy

science
does the doppler shift provide complete information about the motion of a star? pleazzz help
March 30, 2009 by mike

lititure
what are the cause and effect of these things in brave new world? In fiction, as in life, events have causes and, in turn, become causes of subsequent events. Here are some events from Brave New World. Write a sentence that describes a major cause of each event and another ...
November 29, 2011 by amber

Macroeconomics
What does crowding-out effect in a closed economy mean in simple terms? So...if there is 0 crowding-out effect, does it means that the investment/savings stays the same? Actually... I don't see how savings is directly affected by this effect... By the way, does this effect ...
September 27, 2009 by Anonymous

Living environment(please check thank YOU Ms.Sue)
Cause: When hydrochloric acid backs up into the esophagus Effect: called Acid Reflux Cause: As a result of the acidic ph in the stomach Effect: help break down food Cause: As the epigolottis covers the larynx, Effect: I NEED HELP WITH THIS Cause: when reverse peristalsis ...
March 14, 2012 by Anna

government
when the prsident or his designee (usally secretary of states ) negotiates a treaty with a foreign country: A)the senate must approve the document for it to take effect B)both houses of congressmust approve the document for it to take effect. C) only the cabinent must approve ...
October 1, 2008 by Anonymous

Physics
A Doppler blood flow meter emits ultrasound at a frequency of 5.0 MHz. What is the beat frequency between the emitted waves and the waves reflected from blood cells moving away from the emitter at 0.15m/s? Assume that v_sound=1540m/s in blood.
November 7, 2009 by N.

Math
Consider an antenna transmitting at 900 MHz. The reciever is traveling at a speed of 40km/h. Calculate its Doppler shift.
February 9, 2011 by Josh

Physics Please check my answers
A sound of 7 kHz frequency is well within the normal hearing range of most people. True. False. << 2. Sound is a transverse compression wave. True. False.<< 3. The decibel level of a sound can have a negative value. True.<< False. 4. The Doppler effect occurs...
February 4, 2014 by Chelsea

physics - doppler effect
Two identical tuning forks can oscillate at 329.6 Hz. A person is located somewhere on the line between them. The speed of sound in the air is 343 m/s. Calculate the beat frequency as measured by this individual under the following conditions. (a) the listener is standing ...
April 21, 2007 by COFFEE

Statistics
Cohen's conventions for the t test for independent means are approximately _____ for a small effect size, ____ for a medium effect size, and ______ for a large effect size? - .1, .3, .5 - 2, 4, 6 - .2, .5, .8 - 3, 6, 9
October 11, 2009 by Trey

Science 3
Which statement about stellar motion is incorrect? A.In general, the closer a star is, the more its proper motion. B.The radical velocity is measured by the Doppler shift. C.The transverse velocity is measured by the proper motion and distance. D.Like parallax, proper motion ...
October 19, 2006 by Liz

chemistry- can you check my answers?
can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) -> C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following? a) increasing pressure of CO2 increase decrease no effect Answer: ...
April 20, 2011 by Lily

Physics
In one of the original Doppler experiments, one tuba was played on a moving platform car at a frequency of 75 Hz, and a second identical one was played on the same tone while at rest in the railway station. What beat frequency was heard if the train approached the station at a...
February 11, 2010 by Anonymous

M/C
an owner investment of equipment into the business would: a)have no effect on liabilities b)have no effect on owner's equity c)have no effect on total assets d)increase net income i think its "a".
May 27, 2010 by Sat!

Economic
A Giffin good is not correctly described by which of the following? A)A Giffin good must be an inferior good. B)A Giffin good must be such that the income effect and the substitution effect move in opposite directions, and the income effect outweighs the substitution effect. C...
April 11, 2010 by Dina

Statistics
What is the consequence of a Type II error? a. concluding that a treatment has an effect when it really does b. concluding that a treatment has no effect when it really has no effect c. concluding that a treatment has no effect when it really does d. concluding that a ...
December 20, 2013 by Lyndyc

Physics
If centripetal force on an object in uniform circular motion is increased what is the effect on frequency of rotation if radius is constant. What is the effect on frequency and radius if both are free to vary. If veloicty increases, period is decreased, so frequency is increased.
June 18, 2007 by Steve

chemistry
This is from a "effect of pH on the solubility of Ca(OH)2" lab: If excess Ca(NO3)2 were present, what effect would it have on the solubility of Ca9OH)2? also, in a "effect of comlex ion formaiton on the solubility of NiCO3" lab": If HCl(aq) were added to the NiCo3 precipitate...
March 27, 2011 by redgy

science (check!)
2. A salamander is a keystone species in a forest ecosystem with high biodiversity. This species migrates from woodland areas to a local stream to reproduce. If a road is built that cuts off the woodland areas from the stream, what effect will this have on the forest ecosystem...
May 26, 2014 by me

science
Our teacher wore a t-shirt with red lettering that read "if what you're reading is blue you're running to fast" and asked us to find out what it means. Any body have a clue, I was wondering about doppler.
March 19, 2008 by Mike

Physics HELP
An ultrasound transducer used to measure the speed of blood cells is oriented at an angle of 45 degrees to the direction of the blood flow. if the frequency of the sound emitted by the transducer is 1.5 Mhz and the doppler shift is 268Hz, calculate the speed of blood cells. ...
June 15, 2012 by Jason

physics
At the Indianapolis 500, you can measure the speed of cars just by listening to the difference in pitch of the engine noise between approaching and receding cars. Suppose the sound of a certain car drops by a factor of 2.40 as it goes by on the straightaway. How fast is it ...
June 18, 2007 by tasha

college physics
Competitive divers pull their limbs in and curl up their bodies when they do flips. Just before entering the water, they fully extend their limbs to enter straight down. Explain the effect of both actions on their angular velocities. Also explain the effect on their angular ...
March 26, 2014 by Mohanad

science
A salamander is a keystone species in a forest ecosystem with high biodiversity. This species migrates from woodland areas to a local stream to reproduce. If a road is built that cuts off the woodland areas from the stream, what effect will this have on the forest ecosystem? A...
December 13, 2013 by Aaron

socials
what effect tv have on many individuals buying habits in post-war period? what effect it have today? it encourage people to buy more products. youngsters demanded sweetned cereals, barbie dolls, davy crocket hats, and many other advertised goods. effect it have today i think a...
December 7, 2011 by Mohammad

Statistics
In an experiment, you measure the popularity of two brands of soft drinks (factor A), and for each brand you test males and females (factor B). The following table shows the main effect and cell means from the study: Factor A Level A1: Level A2: Brand X Brand Y Level B1: 14 23...
March 10, 2014 by Joy

economics
describe the difference between the income effect and the substitution effect
July 13, 2009 by AJ

history
cause: americans moved into spanish texas effect: what's an effect
November 7, 2010 by allen

English 2
I have to write a cause and effect essay, and I'm writing about the cause for the popularity of fast food restaurants and the effect its had on people. I have plenty of causes listed, but for the effect I only have 2- Obesity, and jobs for people without diplomas. Can I get ...
September 28, 2010 by mysterychicken

Science
What ar the 4 componets that effect the earths climate? How does Carbon and Nitrate effect humans and the enviroment?
January 20, 2010 by Ramandeep

physics
A cardiologist uses an ultrasound scanner with an operating frequency of 3.5 MHz that can detect Doppler frequency shifts as small as 0.1 kHz. What is the smallest flow velocity detectable with this device? Two frequencies are given so I know I have to convert the units but ...
October 19, 2013 by Sarah

Physics-Astronomy
A high-velocity star HVS 1 is moving at 600 km/s, 0.2% speed of light. Assuming the HVS 1 is moving away from us, and that its velocity is oriented entirely along our line of sight, determine the Doppler shift of the Ha spectral line (6562.8 Angstrom) produced by this star. Is...
November 16, 2009 by Mark

SOCIAL STUDIES
an example of a part-whole effect question order effect is in the case which issue?
March 18, 2013 by KEN

Greenhouse effect
im doin a project on da greenouse effect if you know any neat facts ill be happy to hear what u have 2 say
April 8, 2010 by Anonymous

7th grade
What is the greenhouse effect and how does it effect the atosmphere?
January 22, 2009 by Peyton

h
cause: lewis and clark explored the west effect: What's an effect?
November 7, 2010 by allen

bio
What is the grandmother effect in humans? what is the grandfather effect?
December 15, 2010 by Allie

Statistics
In a study of the effect of a medical treatment, a simple random sample of 300 of the 500 participating patients was assigned to the treatment group; the remaining patients formed the control group. When the patients were assessed at the end of the study, favorable outcomes ...
August 10, 2013 by HELP!!!! DEV

Physics
How do observations of the photoelectric effect conflict with the predictions of classical physics?
May 21, 2014 by Brent

physics
if the angular speed of earth becomes 17times its present value what will be the 1.effect on a body on the equator of earth? it will be A. Heavier than present value B.lighter than present value C.weightless And also what is the reason? 2.a girl sitting on a swing stands up. ...
March 1, 2013 by edward

physics
if the angular speed of earth becomes 17times its present value what will be the 1.effect on a body on the equator of earth? it will be A. Heavier than present value B.lighter than present value C.weightless And also what is the reason? 2.a girl sitting on a swing stands up. ...
March 1, 2013 by edward

Physics (urgent please)
Using the approximation formula for the doppler shift, fo=fs(1+Vrel/c), one finds that a source is moving aways at 0.60c. What result would the exact formula yield for the recession speed? I have not idea how to figure this one out. Help please. http://en.wikipedia.org/wiki/...
July 11, 2007 by Gulzaman

English 10 HELP
I don't understand this at all! 1.)Supermodel Tyra Banks uses Smooth & Soft bath gel; you should, too! Faulty Cause and Effect Stereotype Red Herring Either/Or Thinking Bandwagon Testimonial 2.)Your answer is incorrect. You are a careless person. Faulty Cause and Effect ...
June 13, 2010 by Ariel

Stats
Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?
February 26, 2012 by Ashley

Stats
Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?
February 26, 2012 by Kelly

Stats
Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?
February 27, 2012 by Kelly

Stats
Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?
March 1, 2012 by Kelly

Statistics
Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?
March 1, 2012 by Tom

Stats
Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?
March 2, 2012 by Tom

physics
A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m with a 109-kg brass bob. It is set to swing with ...
April 23, 2011 by HELP!!!!

Biology
describe the effect of cyanide and arsenic on cellular repiration. Include the effect of these poisons on the electron transport chain. Be specific, and diagrams can be used to elucidate the process.
February 16, 2009 by Caleb

Botany
Choose the correct option: The strongest evidence in favour of DNA as genetic material comes from - 1) Griffith effect 2)Conjugation 3)Taylor's experiment 4)Caim's effect
June 14, 2011 by Shivangi

Chemistry
Experiment 10: Which Fuels provide the most heat? There are many possible sources of error in this experiment. List three that you can think of. Would each error have a large effect, a medium effect, or a small effect on the calculated heat content of a fuel? Also indicate ...
October 7, 2010 by Megan

space
Stars near the ______ should show the greatest Doppler shifts due to the earth's revolution. Why? Would it be stars near the ecliptic because it deals with the earth revolving and having motion.
October 25, 2010 by Anonymous

Check my answers? (Chemistry)
I only get one chance for each of these questions so I was wondering if someone could check my answers, thanks! 1. Consider the following reaction at equilibrium. 2 BrNO(g) ---> 2 NO(g) + Br2(g) Predict the effect of the following changes to the reaction mixture. (a) adding...
April 19, 2011 by Rebekah

Physics (please help!!!!)
A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m with a 109-kg brass bob. It is set to swing with ...
April 24, 2011 by Hard to solve ..please help!!!!

english
does being shy effects my career path, communication, and... what to know does it effect my life i think it effect my life just want to make sure and aslo i need one more on how being shy can effect my life cause i need three and i got only two sorry for asking so many ...
November 16, 2010 by unknown

History
1) Give a short explanation about mining industry in the 1800s and the effect it had. 2) give a short explanation about Transcontinental railroad construction in the 1800s and the effect it had. 3) give a short explanation about Transcontinental railroad in the 1800s and the ...
October 8, 2013 by Kesha

College physics
What is the effect of inserting a ferromagnet inside a winding coil where current flows? The effect is to Fill in the Blank 01 (increase/decrease) the magnetic field inside the coil compared to the field that would have been produced in free space. This also Fill in the Blank ...
July 28, 2010 by katie

science
Complete the following sentence with the best phrase below. Removing just one species from an ecosystem: A.would have no effect, because it is just one species of many B.would have little effect, unless it was a keystone species C.would have a negative effect, unless it was an...
December 9, 2013 by john

Science-Greenhouse Effect
Described the greenhouse effect using the big idea of energy transfer?....PLease answer ASAP
April 23, 2013 by Hanna

english
how does economical status effect the character of Toni Cada Bamtatas "The Lesson effect the character of the story
September 22, 2010 by mikaliah

Science-Greenhouse Effect
What actions can people take to help reduce the greenhouse effect? PLEASE ANSWER ASAP!!
April 23, 2013 by HS

RE English 10 HELP
I posted these questions earlier for help and Writeacher wanted me to post what I chose as answers so someone could check/help me. * is the answer I chose. 2.)Your answer is incorrect. You are a careless person. Faulty Cause and Effect *Stereotype Red Herring Either/Or ...
June 13, 2010 by Ariel

Science
In general, the narrower the spectral line of a star A.the hotter the star is B.the bigger the star is C.the denser the star is D.the smaller that star is E.the cooler the star is E. the cooler the star is . Lower temperatures result less Doppler broadening of lines in the ...
October 19, 2006 by Liz

microeconomics: work-leisure model
Consider the work-leisure model. Assume leisure is a normal good and suppose the wage rate(W) increases, then in this case we will have the following. Substitution effect: W increases => hours of leisure decrease Income effect has TWO components: 1. Ordinary income effect: ...
October 18, 2009 by Victor

physics..please help?
At rest, a carís horn sound at the note A(440Hz) The horn is sounded while the car is moving down the street. A bicyclist moving the same direction with one third the carís speed hears a frequency of 415 Hz. What is the speed of the car? Is the cyclist adead of or behind the ...
April 10, 2007 by sammy

Chemistry Help.......
State the Le Chatelier's principle and explain the following i) The effect that incresing the pressure will have on the eaualibrium yield of methanol ii) The effect of increasing the temperature will have on the equalibrium yeild of methanol iii) The effect of the increasing ...
March 12, 2007 by Lacey

physics
Will the photoelectric effect change for different targets
May 2, 2011 by ashley --- HELP PLEASEE!!!

Physics
WHAT IS LINEAR MOTION? ;(DOMINO EFFECT lab)
March 9, 2012 by Anonymous

Stats
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least three will have this mild...
October 24, 2011 by Jennifer

Can u help me Ms. Sue...Stats
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least three will have this mild...
October 25, 2011 by Jennifer

Stats
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least three will have this mild...
October 25, 2011 by Jen

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