Systems engineers began as a field for which reason?

to aid with large-scaled defense systems in the 1950s.

to facilitate space travel in the 1960s.

to discover new sources of fuel in the 1970s.

to respond to the growth of computer technology in the 1980s.

To aid with large-scaled defense systems in the 1950s.

Explanation:

easy to find online

conduction, convection, radiation

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.