Lecture_1 - National University of Singapore
... related if they both use the same reference point (ie a point that has height zero) ? Question: What happens if A’s reference point is d (B-sticks) above B’s reference point ? Question: Let a point have height u (A-sticks) in A’s world and v (B-sticks) in B’s world. Derive an equation that expresses ...
... related if they both use the same reference point (ie a point that has height zero) ? Question: What happens if A’s reference point is d (B-sticks) above B’s reference point ? Question: Let a point have height u (A-sticks) in A’s world and v (B-sticks) in B’s world. Derive an equation that expresses ...
Spring 2011 Final Review Guide
... We set up our coordinate system so that the positive direction is from the listener toward the source. So if the source is moving away from the listener, its velocity v is positive, but if it is moving toward the listener, then the v is negative. The listener, in this case, is always considered to b ...
... We set up our coordinate system so that the positive direction is from the listener toward the source. So if the source is moving away from the listener, its velocity v is positive, but if it is moving toward the listener, then the v is negative. The listener, in this case, is always considered to b ...
Time dilation
In the theory of relativity, time dilation is a difference of elapsed time between two events as measured by observers either moving relative to each other or differently situated from a gravitational mass or masses.An accurate clock at rest with respect to one observer may be measured to tick at a different rate when compared to a second observer's own equally accurate clocks. This effect arises neither from technical aspects of the clocks nor from the fact that signals need time to propagate, but from the nature of spacetime itself.