Answer: Plant A
Explanation: The control group is participants who do not receive the experimental treatment.
Answer:
Driving force increases, friction forces increase, the driving force is bigger than friction 12.
Explanation:
(a) The average speed from A to B would be 1.76 metre per second and the average velocity from A to B would also be 1.76 metre per second
<span>(b) The average speed from A to C would be 1.73 metre per second and the average velocity from A to C would be 0.87 metre per second</span>
Scientists could investigate this idea by making cathode ray tubes out of different materials to see if the ray was the same.
