The Hope Diamond weighs 44.5 carats. There are 200 mg per carat. ...

[CBme]

The Hope Diamond weighs 44.5 carats. There are 200 mg per carat. How many kilograms does the Hope Diamond weigh?
 
  A) 0.000890 kg
  B) 0.00890 kg
  C) 0.0890 kg
  D) 0.890 kg
  E) 8.90 kg

Question 2

A 2.3-kg object traveling at 6.1 m/s collides head-on with a 3.5-kg object traveling in the opposite direction at 4.8 m/s.
 
  If the collision is perfectly elastic, what is the final speed of the 2.3-kg object?
  A) 0.48 m/s
  B) 7.1 m/s
  C) 3.8 m/s
  D) 4.3 m/s
  E) 6.6 m/s

[DHRUVSHAH]

Answer to Question 1

B

Answer to Question 2

B