1. They both exert a strong gravitational pull on each other.
2. a black hole
3. pinwheel
4. Star A will have a higher apparent magnitude because it at a lesser distance.
5. Both orbit the sun.
6. Saturn.
7. determine temperature, chemical composition, and speed
8. treating medical conditions
9. Some scientists think that the universe will not keep expanding forever.
10. After the universe reaches its expansion limit, gravity will pull it all back together.
11. What is the future of the universe?
12. big bang theory
13. There is a red shift, which means that the star is moving away from the sun.
14. Global positioning can provide high precision measurements so that small changes over time could be seen.
15. new lightweight blankets developed in the space program
16. written response
In what ways might modern technology be helpful to geologists trying to understand the formation of mountain ranges?
A. Rockets allow us to access mountain ranges that would otherwise be difficult to access.
B. Computers could be used to come up with new ways to communicate what we have learned.
C. Digital video allows us to see and review changes that happen in milliseconds.
D. Global positioning can provide high precision measurements so that small changes over time could be seen.
2 answers
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1 answer