What state of motion did aristotle attribute to earth?

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.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Phase changes are chemical changes. true or false