A mass m is attached to a string fixed at the other end to create a simple pendulum with a period T. What would the
new period be if the string length was cut in half?
a. 27
b.
T
2
c. /
d. T
e. Not enough info
2

answera compound;

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j