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What is the Doppler effect. How might the Doppler effect be used to measure velocity?
Wiki User
∙ 6y ago
Doppler effect is a effect of a sound that comes from moving object. Sound travels at the speed of 343 meters per second in dry air at 20 degree Celsius. Suppose the object is coming you with high speed the sound waves will get compressed. If the object goes away from you with high speed the sound waves will get diluted. You must have noticed a vehicle with siren coming to you and going away from you. The pitch of the sound is different in both the cases. The computer can give you the real time calculation of the speed. speed can be calculated by the computer in very short duration of the span. May be second or two. This phenomena is widely used to locate the speed of the moving object. In the medical field, it is very valuable tool. The speed of blood flow can be transformed into different colors. Like in color Doppler ultrasound examinations.
Wiki User
∙ 6y ago
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Effect of acceleration due to gravity?
Acceleration simply refers to the rate of change of a velocity. You might say that the effect of an acceleration - any acceleration - is therefore a change of velocity.
Why a change in speed of the rover might not effect its velocity?
Either a change in speed or direction, or both, will affect its velocity. If there is a change in speed, then the rover's velocity has changed.
What is droppler effect?
The Doppler effect is the mix of red shift and blue shift. For example when your walking down the street and a car drives up from behind you and you don't see it but hear it your hearing the blue shift of the Doppler effect. also same scenario but the car has passed and driving away in front of you then your hearing the red shift of the Doppler effect. hope that helps I'm in 8th grade might wanna check but I'm pretty sure that's right well that's what we learned today anyway...:)
What is termanial velocity?
It might be an incorrect spelling of "terminal velocity".
When is the instantaneous velocity equal to avg velocity?
Mainly, when the velocity doesn't change. Also, in the case of varying velocity, the instantaneous velocity might, for a brief instant, be equal to the average velocity.
How Doppler radar can be used to measure the intensity of precipitation?
forecaster might determined by the colour code
How did the Doppler effect lead to the Big Bang theory?
Actually, it wasn't the Doppler-effect that lead to the Big Bang theory, but the red-shift of remote galaxies. Although it was initially thought that this red-shift might be caused by a Doppler-effect, it is now understood that this red-shift is caused by the metric expansion of space itself.
Effect of acceleration due to gravity?
Acceleration simply refers to the rate of change of a velocity. You might say that the effect of an acceleration - any acceleration - is therefore a change of velocity.
Why a change in speed of the rover might not effect its velocity?
Either a change in speed or direction, or both, will affect its velocity. If there is a change in speed, then the rover's velocity has changed.
How would sunlight be different if collisions between atoms and the Doppler Effect had no influence on the photons the atoms emit?
Interesting question! I conjecture that the light would be purest white as the Doppler effect and all sorts of collisions are negated in your question. Still, don't hold me to this answer as an astronomer or a physicists might have a wholly different and better answer.
What is droppler effect?
The Doppler effect is the mix of red shift and blue shift. For example when your walking down the street and a car drives up from behind you and you don't see it but hear it your hearing the blue shift of the Doppler effect. also same scenario but the car has passed and driving away in front of you then your hearing the red shift of the Doppler effect. hope that helps I'm in 8th grade might wanna check but I'm pretty sure that's right well that's what we learned today anyway...:)
How do you calculate new velocity when speed changes?
That depends: based on what information? One calculation you might do is to add the original velocity with the velocity change (vector addition). However, normally you would proceed the other way: you would have to MEASURE the original velocity and the final velocity, and THEN calculate the difference in velocity.f
What is termanial velocity?
It might be an incorrect spelling of "terminal velocity".
Why do they use Doppler radar to monitor tornadoes?
Doppler radar can be used to measure at a distance how fast the wind is moving towards or away from the radar. Because of this ability, we can used Doppler radar to detect the rotation in a thunderstorm that either indicates a tornado or might become one. Radar provides a huge advantage since it can scan a large area in a matter of minutes and detect tornadoes even when nobody is around to see them or if they are obscured by rain or the dark of night.
When is the instantaneous velocity equal to avg velocity?
Mainly, when the velocity doesn't change. Also, in the case of varying velocity, the instantaneous velocity might, for a brief instant, be equal to the average velocity.
What might spell ceilotvy?
velocity
What radar can predict when a tornado might touch down?
Doppler radar can be used to make such predictions.
