medium · SAT Math
The period T of a pendulum is given by the formula T = 2π √(L/g), where L is the length and g is the acceleration due to gravity.
Which of the following expresses L in terms of T, g, and π?
- L = (T^2)/(4π^2 g)
- L = g(T - 2π)^2
- L = (gT^2)/(2π)
- L = (gT^2)/(4π^2)
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