THE UNIVERSE The universe (Latin: universus) is all of space and timelal and
their contents, 10) including planets, stars, galaxies, and all other
forms of matter and energy. While the spatial size of the entire
universe is unknown, 31 it is possible to measure the size of
the observable universe, which is currently estimated to be 93
billion light-years in diameter. In various multiverse hypotheses, a
universe is one of many causally disconnected il constituent
parts of a larger multiverse, which itself comprises all of space
and time and its contents.
[12]
The physical universe is defined as all
Ilontively referred to as spacetime)
how old is this earth?

Momentum lab this lab uses a phet simulation. navigate to the phet momentum simulation. if you don’t see the image below when you click on the link, then you need to either enable adobe flash (click on the puzzle piece on your screen) or you need to install adobe flash (this is a free program). change the vectors to be momentum vectors only. they are yellow. make the mass of both balls the same. hit play and notice what happens to the momentum vectors before and after the collision. you might want to play the sim multiple times. click on restart or return balls to start over. to see numbers, check the show values box (inside the green box). red’s momentum vector before the collision is green’s momentum vector after the collision. question 1 options: shorter than longer than equal to question 2 (1 point) saved since green bounces off red, this must be an collision. question 2 options: explosion inelastic elastic question 3 (1 point) red transfers of its momentum to green during the collision. question 3 options: little all most none question 4 (4 points) why does red transfer all its momentum to green? back up your answer with information from the simulation. write at least 2 sentences.