The Smithsonain used to have a huge pendulum that was 21.0 m long. What was its period?

T = 9.19 seconds

Explanation:

It is given that,

Length of the pendulum, l = 21 m

We need to find its time period. We know that the time period of the pendulum is given by :

g is acceleration due to gravity

So,

So, the period of the pendulum is 9.19 seconds.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.