1)After the block is releases from x=A, it will?
A)remain at rest.
B)move to the left until it reaches equilibrium and stop there.
C)Move to the left until it reaches Âx=-AÂ and stop there.
D)Move to the left until it reaches Âx=-AÂ and then begin to move to the right.
2)The time it takes the block to complete one cycle is called the period. Usually, the period is denotedÂT and is measured in seconds.The frequency, denotedÂf, is the number of cycles that are completed per unit of time:Âf=1/T. In SI units,Âf is measured in inverse seconds, or hertz ({\rm Hz}).
If the period is doubled, the frequency is
A)Unchanged
B)Doubled
C)halved
