What is an example of technology made possible by understanding quantum mechanics? a.
semiconductors
c.
Both A and B
b.
transistors
d.
None of the above

and 1and 1

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.

i would say

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.