The power factor of an RL circuit with a 100- resistor and a ...

[fahad]

The power factor of an RL circuit with a 100- resistor and a certain inductor is 0.60. What is the impedance of the circuit?
 
  A) 170
  B) 85
  C) 340
  D) 100
  E) 60

Question 2

A mass of 0.250 kg is attached to a spring and undergoes simple harmonic oscillations with a period of 0.640 s. What is the force constant of the spring?
 
  A) 2.45 N/m
  B) 12.1 N/m
  C) 24.1 N/m
  D) 0.102 N/m
  E) 0.610 N/m

[scottmt]

Answer to Question 1

A

Answer to Question 2

C

[fahad]

Thank you!

[scottmt]

Always glad to help...