phy
posted by ami .
A pendulum has a period of 0.75 s on Earth. What is its period on a planet where the acceleration of gravity is about 0.41 that on Earth?

doesn't period= 2PI sqrt(length/g)
or in math language, period is inversely proportional to the square root of g?
TonPlanetx/.75=sqrt(1/.41)
= you do it.