An astronaut has landed on another planet and conducts an ...

[crobinson2013]

An astronaut has landed on another planet and conducts an experiment to determine the acceleration of gravity on that planet. She uses a pendulum 0.640 m long and determines that the period of oscillation is 2.60 s.
 
  What is the acceleration of gravity on that planet? A) 4.85 m/s2
  B) 1.66 m/s2
  C) 3.74 m/s2
  D) 2.39 m/s2
  E) 9.81 m/s2

Question 2

What inductance must be put in series with a 200- resistor at 4000 Hz to have a total impedance of 240 ?
 
  A) 3.28 mH
  B) 4.28 mH
  C) 5.28 mH
  D) 6.28 mH
  E) 12 mH

[shewald78]

Answer to Question 1

C

Answer to Question 2

C

[crobinson2013]

TY

[shewald78]

You're welcome