Assume we can determine the position of a particle within an ...

[CORALGRILL2014]

Assume we can determine the position of a particle within an uncertainty of 0.5 nm. What will be the resulting uncertainty in the particle's momentum (in kg  m/s)?
 a. 1.9  10-25
  b. 4.2  10-25
  c. 1.1  10-25
  d. 1.3  10-24
  e. 6.6  10-25

Question 2

Because the factor h on the right side of the Heisenberg uncertainty principle has units of Joule-seconds, it suggests that the energy of a system also has uncertainty. The uncertainty in energy depends on the length of the time interval during which a system exists. DEDt  h/4p. Suppose an unstable mass is produced during a high-energy collision such that the uncertainty in its mass is me/100 . (me = 9.11  10-31 kg.) How long will this particle exist?
 a. 6.4  10-20 s
  b. 2.3  10-23 s
  c. 1.0  1015 s
  d. 1.2  1013 s
  e. 8.1  10-19 s

[sultansheikh]

Answer to Question 1

C

Answer to Question 2

A

[CORALGRILL2014]

Gracias!

[aliotak]

Thanks for the timely response, appreciate it