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The cost of an observer can vary depending on the location, experience level, and specific tasks required. Generally, observers may charge by the hour or by the day, and rates can range from a few hundred to several thousand dollars. It's recommended to discuss pricing with the observer directly to get an accurate quote for their services.

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1y ago

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From the perspective of a stationary observer, does time for an object in motion relative to the observer"?

Yes, time for an object in motion relative to a stationary observer appears to pass slower.


When is a body said to be in motion in relation to an observer?

when position of the body with respect to an observer change with time then the body are said to be in motion.


How the apparent motion of a object depend on the observer motion?

The apparent motion of an object can vary depending on the motion of the observer. This is due to the concept of relative motion, where the perception of an object's movement is influenced by the observer's own motion. For example, if the observer is moving towards an object, the object may appear to move faster than if the observer is stationary.


Why does an observer use a frame of reference to detect motion?

An observer uses a frame of reference to detect motion because motion is relative and depends on the observer's point of view. By using a frame of reference, the observer can establish a stationary point against which to measure an object's position and velocity. This helps in determining whether an object is in motion or at rest relative to the observer.


Does the frequency change if the observer moves?

Yes, the frequency of a wave changes if the observer is moving relative to the source of the wave. This is described by the Doppler effect, where the frequency appears higher if the observer is moving towards the source, and lower if the observer is moving away from the source.