Which of the following examples violates (breaks) the Law of Conservation of Energy?
converting 100k) of chemical energy to 140 kJ of mechanical energy
converting 100kJ of chemical energy to 100 kJ of thermal energy
converting 100kJ of chemical energy to 50 kJ of mechanical energy and 50 kJ of
thermal energy
O converting 100kJ of chemical energy to 25 kJ of nuclear energy and 75 kJ of
thermal energy

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.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

it's a b and