A 4.0-mF capacitor is discharged through a 4.0-k resistor. How ...

[misspop]

A 4.0-mF capacitor is discharged through a 4.0-k resistor. How long will it take for the capacitor to lose half its initial stored energy?
 
  A) 9.2 s
  B) 2.7 s
  C) 10.2 s
  D) 5.5 s
  E) 1.6 s

Question 2

A person who normally weighs 700 N is riding in a rather swift elevator that is moving at a constant speed of 9.8 m/s. If this person is standing on a bathroom scale inside the elevator, what would the scale read?
 
  A) more than 700 N
  B) less than 700 N
  C) 700 N
  D) It could be more or less than 700 N, depending on whether the elevator is going up or down.

[ankilker]

Answer to Question 1

D

Answer to Question 2

C

[misspop]

Thank you!

[ankilker]

Always glad to help...