<em>Technician A is correct with his statement</em>
Explanation:
The transmission system is responsible for the transfer of power from the engine of a vehicle to the shaft and the differential which let the wheels to turn.
For a conventional transmission system, the speed gear can move freely on the shaft until they are locked to the synchronizer.
In the illustration, Technician A is correct because the speed gears are independent of the main shaft and operate on their own. Also, the counter gear controls the countershaft and the speed gear in a conventional transmission does not revolve on the countershaft.
<em>Therefore technician A is correct with his statement.</em>
Scientists conduct experiments in order to prove a theory or a prediction they have or contradict it, so that then they can write down their results to study them.
Normal force for the rock because that makes an object stable at its position. static friction because micro-welts hold its particle on its position so it doesn't change in position by a potential energy. Gravity makes it stay on the ground because its force attraction between an object and the earth. Hope this helps <span />