What is the time between occurrences?

Express your answer in terms of some or all the variables $$ and $A.$

A harmonic oscillator has angular frequency $$ and amplitude

$A.$

$t=$

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Part E

At an instant when the displacement is equal to $\frac{A}{2},$ what fraction of the total energy of the system is kinetic?

Express your answer numerically.

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Part F

At an instant when the displacement is equal to $\frac{A}{2},$ what fraction of the total energy of the system is potential?

Express your answer numerically.

$\frac{U}{E}=$