Which of the following works best for fusing hydrogen? A) Hit ...

[renzo156]

Which of the following works best for fusing hydrogen?
 
  A) Hit the hydrogen nucleus with a neutron.
  B) Hit the hydrogen nucleus with an electron.
  C) Cool the hydrogen until the nuclei are at rest and then suddenly compress them.
  D) Bring the hydrogen nuclei together very slowly until they hold together.
  E) Heat it up to such a high temperature that collisions cause the nuclei to fuse.

Question 2

From the edge of a roof top you toss a green ball upwards with initial speed v0 and a blue ball downwards with the same initial speed. Neglect air. When they reach the ground below
 
  A) the green ball will be moving faster than the blue ball.
  B) the blue ball will be moving faster than the green ball.
  C) the two balls will have the same speed.

[blakeserpa]

Answer to Question 1

E

Answer to Question 2

C

[renzo156]

Thank you!

[blakeserpa]

Always glad to help...