A 1.33 kg dense mass is on the end of a 4.50 m string. (a) ...

[jilianpiloj]

A 1.33 kg dense mass is on the end of a 4.50 m string.
 
  (a) What would be the period of the pendulum on Earth?
  (b) If the mass were doubled, what would be the frequency of oscillation?
  (c) What would be the period on the planet Mars where gravity is 38. that of the Earth?

Question 2

The critical angle is given by sinc (1/n1 ) for what condition?
 
  What will be an ideal response?

[macagnavarro]

Answer to Question 1

(a) 4.26 s
(b) 0.235 Hz
(c) 6.9 s

Answer to Question 2

The second index n2 =1.00

[jilianpiloj]

Both answers were spot on, thank you once again

[macagnavarro]

Great! Please up vote