22. the main purpose of the turbine in the turbojet engine is to

a. drive the compressor.
b. reduce the temperature of the exhaust gas.
c. increase the velocity of the exhaust gases.
d. compress the air.

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.