Question

what is spacetime? THIS QUESTION VALUE IS OF 100 POINTS​

Answer 1

Answer:

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Explanation:

In physics, spacetime is any mathematical model which fuses the three dimensions of space and the one dimension of time into a single four-dimensional manifold. Spacetime diagrams can be used to visualize relativistic effects, such as why different observers perceive where and when events occur differently.

Answer 2

Explanation:

Space-time is a mathematical model that joins space and time into a single idea called a continuum. This four-dimensional continuum is known as Minkowski space. ... But in a relativistic universe, time cannot be separated from the three dimensions of space.