Andrea and chuck are riding on a merry-go-round. andrea rides on a horse at the outer rim of the circular platform, twice as far from the center of the circular platform as chuck, who rides on an inner horse. when the merry-go-round is rotating at a constant angular speed, andrea's angular speed is which of the following?
(a) what is the relationship between their angular speeds?
(b) what is the relationship between their tangential speeds? explain.

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.