What is the strength of the electric field 0.020 m from a 12 µc charge?
a. 5.4 × 106 n/c
b. 2.7 × 108 n/c
c. 5.4 × 1012 n/c
d. 2.7 × 1014 n/c

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg