Answer:
you can take half of what you made put it in the bank and use the other half on stuff you need
Explanation:
Answer: is constant
Explanation:
In order to analyze the velocity of the stars within a galaxy, the <u>galaxy rotation curves</u> (developed by the American astronomer Vera Rubin) are used. These graphs are elaborated as a scatter diagram in which the orbital velocity of the stars present in a galaxy is represented on the Y axis and the distance of these stars to the center of the galaxy on the X axis.
Thanks to this diagram, it has been possible to observe a characteristic behavior in the rotation speed of the stars (and gas) present in the galaxies, which differs from the rules of the orbital movement of the planetary systems postulated by Newton and Kepler.
This means that in these galaxy rotation curves it has been observed that the rotation speed of stars and gas is "constant", regardless of the distance to the center of the galaxy. This discrepancy and these results were then used to demonstrate the existence of dark matter in the universe.
They begin as streams in mountains or hills
Answer:
The GPS provides the accurate location patterns
Explanation:
- Each GPS satellite consist of the multiple atomic clocks that contribute to the precise time and data to the GPS in the signal forms and this data is decoded by the serves of the GPS satellite and shows an effective synchronization and each receiver and precise time is accurate and has a variety of activity around the world.
- For an example of the Olympic committee wants all broadcast to show particular diving event at precisely the same time. Thus the receiver is set at the me time and in close synchronization. Ad us usually measured in the weeks and seconds and aero point of the night.