Suppose you want to set up a simple pendulum with a period of ...

[corkyiscool3328]

Suppose you want to set up a simple pendulum with a period of 0.250 s.
 
  (a) What length is required if g = 9.80 m/s2 on Earth?
  (b) What length would be required on the moon assuming g is 6 (assume exact) times LESS than on Earth?

Question 2

Four charges of equal charge +q are placed at the corners of a rectangle of sides a and b. What is the potential at the center of the rectangle if q = 2.0 C, a = 30. mm, and b = 40. mm?
 
  What will be an ideal response?

[sierrahalpin]

Answer to Question 1

(a) 0.0155 m
(b) 0.259 cm

Answer to Question 2

2.9  106 V

[corkyiscool3328]

TY

[sierrahalpin]

You're welcome