Uranium is one possible fission-reactor fuel. Another is A) ...

[Pineapplelove6]

Uranium is one possible fission-reactor fuel. Another is
 
  A) poppy seeds.
  B) thorium, produced from the isotope 238U that is present in reactor fuel.
  C) plutonium, obtained by the enrichment of naturally-occurring plutonium.
  D) radium, obtained by the enrichment of naturally-occurring radium.
  E) plutonium, produced from the isotope 238U that is present in reactor fuel.

Question 2

Two identical gliders slide toward each other on an air track. One glider moves at 1 m/s and the other glider moves at 2 m/s. They collide, stick, and move at
 
  A) 1/2 m/s.
  B) 1/3 m/s.
  C) 1/6 m/s.
  D) 3/4 m/s.
  E) 1.5 m/s.

[katieost]

Answer to Question 1

E

Answer to Question 2

Answer: A

[Pineapplelove6]

Excellent

[frankwu0507]

Gracias!