0
How can the relative speed of light be constant when the Doppler shift of light suggests addition or subtraction of velocities?
Excellent question! It appears you're trying to connect the frequency of a wave to its velocity through the medium in which it's traveling, and you'll need to uncouple them. Let's look at some things to help you do that. If you've stood alongside a roadway and watched (and listened to) cars coming at you, you notice the pitch is higher as the vehicles approach, then lower as they pass and move away. The air is not moving toward you (unless you are way too close), and the sound is not coming at you "faster" and then "slower". The sound is traveling through the air at the same rate no matter which way the vehicle is moving. Here's what's happening. Sound comes from the source in the form of waves, moving out like an expanding bubble. When the vehicle is coming toward you rapidly, the vehicle shortens the gap between the siren and the next wave. The gap shortens because the sound only travels so fast and no faster, but the vehicle is catching up a little before the next wave comes out. This keeps happening, and if you could see the waves, you would see them bunching up together. The waves are closer. This means that there are more waves in one second's worth of sound. The frequency of sound waves is what gives rise to our experience of pitch. Higher frequency equals higher pitch. You can see what happens when the vehicle recedes. The sound is still traveling at the speed of sound, but because the vehicle is moving away, this has the effect of putting more space in between the waves of sound. there are fewer waves per second as the vehicle moves away from you; the sound hasn't changed velocity. Lower frequency equals lower pitch. It is essentially the same with light. Light, of course, does not need air or any other substance to travel through as sound does. But the light is not speeding up or slowing down. You are seeing either the "bunching up" of light waves or the "thinning" of the waves, depending on which way the object is moving. Think about it this way too. When you see light of various colors around you, you aren't imagining the different colors coming at you at different velocities, right? They all travel at the speed of light.
What else can I help you with?
Is relative dielectric constant dimensionless?
Correct: it is a dimensionless number.
What is the advantage of bode diagram?
1.) both relative and absolute stability can be determined 2.) since it uses log values multiplication abd division can be converted to addition and subtraction 3.) it uses asymtotic approximation approch to determine approximate freequency response of a system. 4.) values of higher and lower freequencys can be plotted
Do relative permittivity and dielectric constant of a medium imply different physical qantities?
Relative permittivity and dielectric constant are often used interchangeably, but they can imply different contexts. Relative permittivity (ε_r) is a dimensionless measure of a material's ability to store electrical energy in an electric field, relative to the vacuum. The term "dielectric constant" traditionally refers to this same quantity, but it can sometimes be used more loosely to describe the material's overall insulating properties. Thus, while they represent similar concepts, the terminology can depend on the specific physical context being discussed.
What can be graphed on a number line?
A number line can graph various types of numbers, including integers, fractions, decimals, and real numbers. It visually represents their relative positions and distances from one another. Additionally, it can illustrate operations like addition and subtraction by showing movements along the line. Number lines are also useful for indicating inequalities and ranges of values.
What is dk measurement?
DK measurement is the measurement of the relative dielectric constant of liquids and solid material. It is a measure of permeability.
What is the combining of velocities known as?
The combining of velocities is known as velocity addition or relative velocity. It involves adding or subtracting the velocities of two objects moving relative to each other.
What are most velocities measured relative to?
Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.
What are operations that undo each other such as addition and subtraction?
the Inverse Operation. This answer is relative to math, and operations.
How do I find the magnitude and direction of a surfer traveling at 1.0 ms relative to the water across a wave that is traveling at 6.0 ms?
To find the surfer's velocity relative to the ground, you can use vector addition. The magnitude can be found using the Pythagorean theorem with the given velocities of the surfer and the wave. The direction can be determined using trigonometry, typically by finding the arctangent of the components of the velocities.
Velocity addition is used when motion involves?
Velocity addition is used when dealing with two objects moving at different velocities relative to each other. It helps calculate the combined velocity of the objects when seen from a different reference frame.
What will be the relative velocity if two electrons approach each other?
The relative velocity of two electrons approaching each other would be the sum of their individual velocities. Given that both electrons have the same charge and mass, their velocities would be equal in magnitude but opposite in direction. This would result in a combined relative velocity of zero when they meet.
What is relative velocity for two bodies A and B with velocities Va and Vb in the same direction?
If the velocities are equal from my point of view, then I see them both moving at the same speed and in the same direction. That means that from the point of view of an observer riding on either body, the other one is standing still. Their relative velocity is zero. This is exactly the situation with a passenger and the book she's reading, both in an airliner flying west at 400 mph.
What is relative permittivity if dielectric constant of water is 80.10?
'Dielectric constant' is an archaic term for relative permittivity. They are one and the same.
What name for Mechanical models of solar system in which planets can be moved at their relative velocities?
Orreries or planetariums are mechanical models of the solar system that can simulate the movement of planets relative to each other at their actual velocities. These models are often used to study and visualize the dynamics of the solar system.
What is the relative amount of kinetic energy?
Kinetic energy is proportional to the square of an object's velocity, so the relative amount of kinetic energy depends on the velocities of the objects in question. If one object is moving faster than another, it will have more kinetic energy. The ratio of their kinetic energies will be the square of the ratio of their velocities.
What is relative rate constant?
The relative rate constant is a ratio of the rate constants of two reactions in a chemical reaction mechanism. It is used to determine the rate of reaction between different reactants in relation to each other.
What is zero velosity?
There is no such thing as zero velocity. Only zero velocity relative to some other thing. And you may have to consider rotational velocities as well.We would only know absolute velocity if we knew the positions and velocities of all the matter in the universe. But ordinary mortal problems do not usually need this, so relative velocity is all we know about.
