In your own words, explain what we mean by spacetime
What will be an ideal response?
It is the combination of space and time that all observers will agree upon, even while they may disagree about space and time independently.
You might also like to view...
The two most common igneous rocks are basalt and granite. Basalt is commonly found ________, and granite is found ________
A) on the ocean floor; on the continents B) on both the ocean floor and continental land; only on the continents C) on the continents; on the ocean floor D) on the ocean floor; on both the ocean floor and on continental land
The critical density for the Universe is about
A. equal to six hydrogen atoms per cubic meter. B. the same as the density of the Sun. C. equal to 6,000 hydrogen atoms per cubic meter. D. the same as the density of Earth. E. equal to 600,000 hydrogen atoms per cubic meter.
Polaris is 10 times larger than Capella A and both are the same color. How much brighter or dimmer is Polaris to Capella?
a. 10× brighter
b. 10× dimmer
c. 100× brighter
d. 100× dimmer
Deuterium abundance suggests that normal matter makes up only 3-4% of the critical density
Indicate whether the statement is true or false