Which layer of the earth takes up the most of earth's volume?

Your pendulum clock which advances 1.0 s for every complete oscillation of the pendulum is running perfectly on earth at a site where the magnitude of the acceleration due to gravity is 9.80 m/s2. you send the clock to a location on the moon where the magnitude of the acceleration due to gravity is 1.65 m/s2.

Which best represents the law of conservation of mass ?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =