Author Question: What do we mean by dimension in the context of relativity? A) the size of an object B) the ... (Read 80 times)

bobbysung · **on:** Jul 27, 2018

What do we mean by dimension in the context of relativity?

A) the size of an object
B) the number of independent directions in which movement is possible
C) the letter used to represent length mathematically
D) the number of sides that we can see when we look at an object
E) the height of an object

Question 2

The Planck era refers to the time period

A) before the Big Bang.
B) before the Planck time.
C) after the Planck time.
D) after inflation.
E) after the GUT era.