Question

Can anyone answer this question?? ​

Answer 1

Answer:

That time is a dimension of spacetime (sometimes called the fourth dimension) is another valid definition.

For example, consider the Minkowkski metric

ds²= -c²dt² + dx² + dy² + dz².

Then that temporal dimensions, and the usual coordinate time t in particular, are different form spatial dimensions like x,y, and z, is indicated by the fact that the coefficient of the temporal summand is negative, while it is positive for like spatial summands

Answer 2

Answer:

356 ryyhrr4tfvtyhrr643