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Results tagged with vectors
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user 386702
Geometric object with magnitude (length) and direction.
8
votes
4
answers
1k
views
Why "time part" represents energy in Four-momentum?
I was going through Spacetime Physics by Taylor and Wheeler and came to a point where they said, and I quote,
In what follows we find that momenergy is indeed a four-dimensional
arrow in spacetime, t …
- 121
0
votes
1
answer
45
views
How to get the coordinates for rotated axes?
I'm quoting from the Feynman Lectures:
"Assume that Moe’s axes have rotated relative to Joe’s by an angle θ. The two coordinate systems are shown in Fig. 11-2, which is restricted to two dimensions. …
- 121