Help on this physics question please! Much appreciated! It is on frequency of a pendulum

Time period = 2*0.79 s =     1.58 s

Frequency = 1/TimePeriod = 0.63 Hz

Explanation:

Time period of the pendulum is the time taken to come back to the exact same position. so if you start from top left, the time period is the time taken when the pendulum comes back up to top left.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.