A quantum computer built from 4 qubits A) must be in only one ...

[ereecah]

A quantum computer built from 4 qubits
 
  A) must be in only one of its 16 possible quantum states.
  B) must be in only one of its 4 possible quantum states.
  C) can be in all 8 of its 8 possible quantum states, simultaneously.
  D) can be in all 16 of its 16 possible quantum states, simultaneously.
  E) can be in all 4 of its 4 possible quantum states, simultaneously.

Question 2

A proton in a certain particle accelerator has a kinetic energy that is equal to its rest energy. What is the momentum of the proton as measured by a physicist working with the accelerator? (c = 3.00  108 m/s, mproton = 1.67  10-27 kg)
 
  A) 2.51  10-19 kg  m/s
  B) 2.89  10-19 kg  m/s
  C) 4.34  10-19 kg  m/s
  D) 5.01  10-19 kg  m/s
  E) 8.68  10-19 kg  m/s

[dyrone]

Answer to Question 1

D

Answer to Question 2

E

[ereecah]

TYSM

[adf223]

Thanks for the timely response, appreciate it