Two planets (X and Y) that are far apart have the same mass, but planet Y has a radius three times that of planet X. If a is the magnitude of the acceleration due to gravity on the surface of planet X, what is the magnitude of the acceleration due to gravity on the surface of planet Y?

uranium fissions/breaks up giving out energy and neutrons

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

an energy transformation flow diagram is shown

where is it ?

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.