An electron is traveling at 0.85c. What is its mass? (The rest ...

[APUS57]

An electron is traveling at 0.85c. What is its mass? (The rest mass is 9.11  10-31 kg.)
 
  A)
 
  1.4  10-29 kg
  B)
 
  7.2  10-30 kg
  C)
 
  1.7  10-30 kg
  D)
 
  2.4  10-30 kg
  E)
 
  4.2  10-30 kg

Question 2

The energy of an electron in the p-level of an atom is changed in the presence of a magnetic field of magnitude 4.6 T.
 
  What is the difference between the largest and smallest possible energies? (Bohr magneton = B = 9.27  10-24 J/T)

[otokexnaru]

Answer to Question 1

C

Answer to Question 2

8.5  10-23 J

[APUS57]

Thanks for the timely response, appreciate it

[elyse44]

TYSM