A seconds pendulum is one that passes through its equilibrium position once every 1.000 s. Part A
What is the period of a seconds pendulum?
Express your answer to four significant figures and include the appropriate units.
Part B
A seconds pendulum in Chicago has a length of 0.9933 m. What is the acceleration due to gravity in Chicago?
Express your answer to four significant figures and include the appropriate units.

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2