What is the impedance of an ac series circuit with 12.0 of ...

[mckennatimberlake]

What is the impedance of an ac series circuit with 12.0  of resistance, 15.0  of inductive reactance, and 10.0  of capacitive reactance?
 
  A) 21.9  B) 13.0  C) 11.6  D) 27.7

Question 2

The lifetime of an excited nuclear state is 1.0 ns. What is the minimum uncertainty in the energy of this state? ( h = 1.055  10-34 J  s = 6.591  10-16 eV  s, 1 eV = 1.60  10-19 J)
 
  A) 3.3  10-7
  B) 1.0  10-9
  C) 6.6  10-7
  D) 6.6  10-25
  E) 1.0  10-25

[jordangronback]

Answer to Question 1

B

Answer to Question 2

C

[mckennatimberlake]

TY

[jordangronback]

You're welcome