If the ac peak voltage across a 100-ohm resistor is 120 V, then ...

[madam-professor]

If the ac peak voltage across a 100-ohm resistor is 120 V, then the average power dissipated by the resistor is
 
  A) 102 W.
  B) 288 W.
  C) 72 W.
  D) 144 W.
  E) 220 W.

Question 2

A ball, solid cylinder, and a hollow pipe all have equal masses and radii. If the three are released simultaneously at the top of an inclined plane, which will reach the bottom first?
 
  A) ball
  B) pipe
  C) cylinder
  D) they all reach bottom in the same time

[adf223]

Answer to Question 1

C

Answer to Question 2

A

[madam-professor]

Wow, this really help

[alexanderhamilton]

Thanks for the timely response, appreciate it